{"id":29,"date":"2021-06-29T21:25:17","date_gmt":"2021-06-29T19:25:17","guid":{"rendered":"https:\/\/bcmeter.org\/home\/"},"modified":"2026-06-09T10:47:49","modified_gmt":"2026-06-09T08:47:49","slug":"home","status":"publish","type":"page","link":"https:\/\/bcmeter.org\/de\/","title":{"rendered":"Start"},"content":{"rendered":"<div class=\"wpb-content-wrapper\"><div data-vc-full-width=\"true\" data-vc-full-width-temp=\"true\" data-vc-full-width-init=\"false\" class=\"vc_row wpb_row vc_row-fluid vc_custom_1600000000000 vc_row-has-fill\"><div class=\"wpb_column vc_column_container vc_col-sm-6\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<h1 style=\"font-size: 3em;margin-bottom: 20px\"><b>Closing the Data Gap on Black Carbon.<\/b><\/h1>\n<p style=\"font-size: 1.15em;line-height: 1.7;color: #444\">A source-available black carbon monitor for research institutions, environmental agencies, and NGOs. Validated against professional instruments \u2014 at a fraction of the cost.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<div class=\"vc_row wpb_row vc_inner vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-6\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><div class=\"vc_btn3-container vc_btn3-inline vc_do_btn\" ><a class=\"vc_general vc_btn3 vc_btn3-size-lg vc_btn3-shape-rounded vc_btn3-style-flat vc_btn3-color-primary\" href=\"#specs\" title=\"\">Specifications<\/a><\/div><\/div><\/div><\/div><div class=\"wpb_column vc_column_container vc_col-sm-6\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><div class=\"vc_btn3-container vc_btn3-inline vc_do_btn\" ><a class=\"vc_general vc_btn3 vc_btn3-size-lg vc_btn3-shape-rounded vc_btn3-style-outline vc_btn3-color-primary\" href=\"\/inquiry\/\" title=\"\">Research Inquiry<\/a><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><div class=\"wpb_column vc_column_container vc_col-sm-6\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div  class=\"wpb_single_image wpb_content_element vc_align_center wpb_content_element\">\n\t\t\n\t\t<figure class=\"wpb_wrapper vc_figure\">\n\t\t\t<div class=\"vc_single_image-wrapper vc_box_shadow_border  vc_box_border_grey\"><img loading=\"lazy\" decoding=\"async\" width=\"1661\" height=\"1413\" src=\"https:\/\/bcmeter.org\/wp-content\/uploads\/2025\/12\/bcmeter_interface_screenshot-1.jpg\" class=\"vc_single_image-img attachment-full\" alt=\"\" title=\"bcmeter_interface_screenshot\" srcset=\"https:\/\/bcmeter.org\/wp-content\/uploads\/2025\/12\/bcmeter_interface_screenshot-1.jpg 1661w, https:\/\/bcmeter.org\/wp-content\/uploads\/2025\/12\/bcmeter_interface_screenshot-1-300x255.jpg 300w, https:\/\/bcmeter.org\/wp-content\/uploads\/2025\/12\/bcmeter_interface_screenshot-1-1024x871.jpg 1024w, https:\/\/bcmeter.org\/wp-content\/uploads\/2025\/12\/bcmeter_interface_screenshot-1-768x653.jpg 768w, https:\/\/bcmeter.org\/wp-content\/uploads\/2025\/12\/bcmeter_interface_screenshot-1-1536x1307.jpg 1536w\" sizes=\"auto, (max-width: 1661px) 100vw, 1661px\" \/><\/div>\n\t\t<\/figure>\n\t<\/div>\n<\/div><\/div><\/div><\/div><div class=\"vc_row-full-width vc_clearfix\"><\/div><div class=\"vc_row wpb_row vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div><div class=\"vc_row wpb_row vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><div class=\"vc_empty_space\"   style=\"height: 50px\"><span class=\"vc_empty_space_inner\"><\/span><\/div>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<h2 style=\"text-align: center\">Why Measure Black Carbon?<\/h2>\n\n\t\t<\/div>\n\t<\/div>\n<div class=\"vc_row wpb_row vc_inner vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-2\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><\/div><\/div><\/div><div class=\"wpb_column vc_column_container vc_col-sm-8\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p>Black carbon (soot) poses serious health risks and contributes significantly to global warming (IPCC 20-year CO\u2082 equivalent factor of 2421). Yet, measurement sites remain scarce due to high costs.<\/p>\n<p>bcMeter changes this \u2014 as a cost-effective, source-available platform for a global measurement network.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><div class=\"wpb_column vc_column_container vc_col-sm-2\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><\/div><\/div><\/div><\/div><div class=\"vc_separator wpb_content_element vc_separator_align_center vc_sep_width_100 vc_sep_pos_align_center vc_separator_no_text wpb_content_element  wpb_content_element\" ><span class=\"vc_sep_holder vc_sep_holder_l\"><span style=\"border-color:#e0e0e0;\" class=\"vc_sep_line\"><\/span><\/span><span class=\"vc_sep_holder vc_sep_holder_r\"><span style=\"border-color:#e0e0e0;\" class=\"vc_sep_line\"><\/span><\/span>\n<\/div><\/div><\/div><\/div><\/div><div class=\"vc_row wpb_row vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div><div id=\"specs\" class=\"vc_row wpb_row vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><div class=\"vc_empty_space\"   style=\"height: 20px\"><span class=\"vc_empty_space_inner\"><\/span><\/div><div class=\"vc_row wpb_row vc_inner vc_row-fluid vc_column-gap-20\"><div class=\"wpb_column vc_column_container vc_col-sm-4 vc_col-has-fill\"><div class=\"vc_column-inner vc_custom_1600000000001\"><div class=\"wpb_wrapper\"><div class=\"vc_icon_element vc_icon_element-outer vc_do_icon vc_icon_element-align-center\"><div class=\"vc_icon_element-inner vc_icon_element-color-sky vc_icon_element-size-lg vc_icon_element-style- vc_icon_element-background-color-grey\" ><span class=\"vc_icon_element-icon fas fa-chart-line\" ><\/span><\/div><\/div><h3 style=\"text-align: center\" class=\"vc_custom_heading vc_do_custom_heading\" >Real-Time Dashboard<\/h3>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p><strong>Browser-Based Interface<\/strong><\/p>\n<p>Monitor measurements live from any device on your network \u2014 no cloud account, no subscription.<\/p>\n<ul>\n<li>Live BC, PM2.5, temperature, humidity<\/li>\n<li>Interactive charts with zoom and dual axes<\/li>\n<li>Export to CSV, SVG, or PNG<\/li>\n<li>3-step setup wizard<\/li>\n<\/ul>\n\n\t\t<\/div>\n\t<\/div>\n<div class=\"vc_btn3-container vc_btn3-center vc_do_btn\" ><a class=\"vc_general vc_btn3 vc_btn3-size-md vc_btn3-shape-rounded vc_btn3-style-outline vc_btn3-color-sky\" href=\"\/demo\/\" title=\"\" target=\"_blank\">Try the Demo<\/a><\/div><\/div><\/div><\/div><div class=\"wpb_column vc_column_container vc_col-sm-4 vc_col-has-fill\"><div class=\"vc_column-inner vc_custom_1600000000002\"><div class=\"wpb_wrapper\"><div class=\"vc_icon_element vc_icon_element-outer vc_do_icon vc_icon_element-align-center\"><div class=\"vc_icon_element-inner vc_icon_element-color-blue vc_icon_element-size-lg vc_icon_element-style- vc_icon_element-background-color-grey\" ><span class=\"vc_icon_element-icon fas fa-flask\" ><\/span><\/div><\/div><h3 style=\"text-align: center\" class=\"vc_custom_heading vc_do_custom_heading\" >Tested & Validated<\/h3>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p>\n<strong>Lab-Validated Performance<\/strong><\/p>\n<p>Validated against professional-grade black carbon monitors by independent labs, universities, and environmental agencies.<\/p>\n<ul>\n<li>Compared to MAAP, AE33, microAeth<\/li>\n<li>R\u00b2 = 0.77\u20130.83 against reference instruments<\/li>\n<li>Published in peer-reviewed journals<\/li>\n<\/ul>\n\n\t\t<\/div>\n\t<\/div>\n<div class=\"vc_btn3-container vc_btn3-center vc_do_btn\" ><a class=\"vc_general vc_btn3 vc_btn3-size-md vc_btn3-shape-rounded vc_btn3-style-flat vc_btn3-color-blue\" href=\"#evaluation\" title=\"\">View Results<\/a><\/div><\/div><\/div><\/div><div class=\"wpb_column vc_column_container vc_col-sm-4 vc_col-has-fill\"><div class=\"vc_column-inner vc_custom_1600000000003\"><div class=\"wpb_wrapper\"><div class=\"vc_icon_element vc_icon_element-outer vc_do_icon vc_icon_element-align-center\"><div class=\"vc_icon_element-inner vc_icon_element-color-grey vc_icon_element-size-lg vc_icon_element-style- vc_icon_element-background-color-grey\" ><span class=\"vc_icon_element-icon fas fa-broadcast-tower\" ><\/span><\/div><\/div><h3 style=\"text-align: center\" class=\"vc_custom_heading vc_do_custom_heading\" >Connectivity & IoT<\/h3>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p><strong>Field-Ready Deployment<\/strong><\/p>\n<p>Deploy anywhere \u2014 from urban monitoring stations to remote field sites.<\/p>\n<ul>\n<li>WiFi with local web interface<\/li>\n<li>Optional 4G\/LTE for remote sites<\/li>\n<li>Optional GPS for mobile sampling<\/li>\n<li>Optional PM2.5\/PM10 sensor<\/li>\n<\/ul>\n\n\t\t<\/div>\n\t<\/div>\n<div class=\"vc_btn3-container vc_btn3-center vc_do_btn\" ><a class=\"vc_general vc_btn3 vc_btn3-size-md vc_btn3-shape-rounded vc_btn3-style-outline vc_btn3-color-grey\" href=\"\/inquiry\/\" title=\"\">Research Inquiry<\/a><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><div class=\"vc_row wpb_row vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div><div data-vc-full-width=\"true\" data-vc-full-width-temp=\"true\" data-vc-full-width-init=\"false\" class=\"vc_row wpb_row vc_row-fluid vc_custom_1764195530855 vc_row-has-fill\"><div class=\"wpb_column vc_column_container vc_col-sm-8 vc_col-has-fill\"><div class=\"vc_column-inner vc_custom_1764195640846\"><div class=\"wpb_wrapper\"><h3 style=\"color: #000000;text-align: left\" class=\"vc_custom_heading vc_do_custom_heading\" >Source-Available Design (CC BY-NC 4.0)<\/h3>\n\t<div class=\"wpb_text_column wpb_content_element vc_custom_1764195666206\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p>The design files, firmware and schematics for bcMeter (DIY) \u2014 the Raspberry-Pi version \u2014 are freely available for <b>private, educational, and research use<\/b> (CC BY-NC 4.0). Build your own from the source-available design files and the Wiki, or contribute to the project.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><div class=\"wpb_column vc_column_container vc_col-sm-4\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><div class=\"vc_btn3-container vc_btn3-left vc_do_btn\" ><a class=\"vc_general vc_btn3 vc_btn3-size-md vc_btn3-shape-rounded vc_btn3-style-outline vc_btn3-icon-left vc_btn3-color-primary\" href=\"https:\/\/github.com\/dahljo\/bcmeter-pi\" title=\"\" target=\"_blank\"><i class=\"vc_btn3-icon fab fa-github\"><\/i> Source Code (Github)<\/a><\/div><div class=\"vc_btn3-container vc_btn3-left vc_do_btn\" ><a class=\"vc_general vc_btn3 vc_btn3-size-md vc_btn3-shape-rounded vc_btn3-style-outline vc_btn3-icon-left vc_btn3-color-orange\" href=\"\/wiki\" title=\"\" target=\"_blank\"><i class=\"vc_btn3-icon fas fa-wrench\"><\/i> Assembly Wiki<\/a><\/div><\/div><\/div><\/div><\/div><div class=\"vc_row-full-width vc_clearfix\"><\/div><div class=\"vc_row wpb_row vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p><\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div><div id=\"evaluation\" class=\"vc_row wpb_row vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><div class=\"vc_empty_space\"   style=\"height: 60px\"><span class=\"vc_empty_space_inner\"><\/span><\/div>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<h2 style=\"text-align: center\">Performance Validation<\/h2>\n<p style=\"text-align: center\">Co-location measurements against established professional black carbon monitors.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<div class=\"vc_tta-container\" data-vc-action=\"collapse\"><div class=\"vc_general vc_tta vc_tta-tabs vc_tta-color-blue vc_tta-style-modern vc_tta-shape-square vc_tta-spacing-1 vc_tta-has-pagination vc_tta-tabs-position-top vc_tta-controls-align-left\"><div class=\"vc_tta-tabs-container\"><ul class=\"vc_tta-tabs-list\" role=\"tablist\"><li class=\"vc_tta-tab vc_active\" data-vc-tab role=\"presentation\"><a href=\"#1600000000006-3\" data-vc-tabs data-vc-container=\".vc_tta\" role=\"tab\" aria-selected=\"false\" id=\"tab-1600000000006-3\"><span class=\"vc_tta-title-text\">bcMeter vs MAAP (Leipzig)<\/span><\/a><\/li><li class=\"vc_tta-tab\" data-vc-tab role=\"presentation\"><a href=\"#1600000000004-1\" data-vc-tabs data-vc-container=\".vc_tta\" role=\"tab\" aria-selected=\"false\" id=\"tab-1600000000004-1\"><span class=\"vc_tta-title-text\">bcMeter vs AE33 (Berlin)<\/span><\/a><\/li><li class=\"vc_tta-tab\" data-vc-tab role=\"presentation\"><a href=\"#1700000000001-1\" data-vc-tabs data-vc-container=\".vc_tta\" role=\"tab\" aria-selected=\"false\" id=\"tab-1700000000001-1\"><span class=\"vc_tta-title-text\">bcMeter vs AE33 (RIFS Potsdam)<\/span><\/a><\/li><li class=\"vc_tta-tab\" data-vc-tab role=\"presentation\"><a href=\"#1600000000005-2\" data-vc-tabs data-vc-container=\".vc_tta\" role=\"tab\" aria-selected=\"false\" id=\"tab-1600000000005-2\"><span class=\"vc_tta-title-text\">bcMeter vs mAeth 51 (Berlin)<\/span><\/a><\/li><\/ul><\/div><div class=\"vc_tta-panels-container\"><div class=\"vc_tta-panels\"><div class=\"vc_tta-panel vc_active\" id=\"1600000000006-3\" data-vc-content=\".vc_tta-panel-body\"><div class=\"vc_tta-panel-heading\"><h4 class=\"vc_tta-panel-title\"><a href=\"#1600000000006-3\" data-vc-accordion data-vc-container=\".vc_tta-container\"><span class=\"vc_tta-title-text\">bcMeter vs MAAP (Leipzig)<\/span><\/a><\/h4><\/div><div class=\"vc_tta-panel-body\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p><img decoding=\"async\" style=\"width: 100%\" src=\"https:\/\/bcmeter.org\/wp-content\/uploads\/2025\/03\/MAAP_Leipzig_12-16Aug.png\" \/><br \/>\n<small>114h continuous co-location, Leipzig, Aug 2021. +20 min time offset correction applied to bcMeter (determined via cross-correlation). Hourly averages.<\/small><\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><div class=\"vc_tta-panel\" id=\"1600000000004-1\" data-vc-content=\".vc_tta-panel-body\"><div class=\"vc_tta-panel-heading\"><h4 class=\"vc_tta-panel-title\"><a href=\"#1600000000004-1\" data-vc-accordion data-vc-container=\".vc_tta-container\"><span class=\"vc_tta-title-text\">bcMeter vs AE33 (Berlin)<\/span><\/a><\/h4><\/div><div class=\"vc_tta-panel-body\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p><img decoding=\"async\" style=\"width: 100%\" src=\"https:\/\/bcmeter.org\/wp-content\/uploads\/2025\/03\/AE33_Berlin_Session1.png\" \/><br \/>\n<small>30h co-location with AE33 (MC174 station, BLUME network), Berlin, Jun 2021. No correction factor applied. Hourly averages.<\/small><\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><div class=\"vc_tta-panel\" id=\"1700000000001-1\" data-vc-content=\".vc_tta-panel-body\"><div class=\"vc_tta-panel-heading\"><h4 class=\"vc_tta-panel-title\"><a href=\"#1700000000001-1\" data-vc-accordion data-vc-container=\".vc_tta-container\"><span class=\"vc_tta-title-text\">bcMeter vs AE33 (RIFS Potsdam)<\/span><\/a><\/h4><\/div><div class=\"vc_tta-panel-body\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p><img decoding=\"async\" style=\"width: 100%\" src=\"https:\/\/bcmeter.org\/wp-content\/uploads\/2025\/03\/RIFS_combined.png\" \/><br \/>\n<small>Co-location at RIFS Potsdam, 13 Nov 2024 (bcMeter112 revision). OLS correction applied: BC_corr = 1.016 x BC_raw + 411 ng\/m3. Required due to hardware revision with different baseline offset. 30-minute averages.<\/small><\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><div class=\"vc_tta-panel\" id=\"1600000000005-2\" data-vc-content=\".vc_tta-panel-body\"><div class=\"vc_tta-panel-heading\"><h4 class=\"vc_tta-panel-title\"><a href=\"#1600000000005-2\" data-vc-accordion data-vc-container=\".vc_tta-container\"><span class=\"vc_tta-title-text\">bcMeter vs mAeth 51 (Berlin)<\/span><\/a><\/h4><\/div><div class=\"vc_tta-panel-body\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p><img decoding=\"async\" style=\"width: 100%\" src=\"https:\/\/bcmeter.org\/wp-content\/uploads\/2025\/03\/AE51_vs_bcMeter_Mar2026.png\" \/><br \/>\n<small>35h co-location with microAeth AE51, Berlin, Mar 2026. No correction factor applied. One AE51 outlier removed (instrument artifact). Hourly averages.<\/small><\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div>\n<ul aria-label=\"Pagination\" class=\"vc_general vc_pagination vc_pagination-style-flat vc_pagination-shape-square vc_pagination-color-grey\">\n\n<li class=\"vc_pagination-item vc_active\" data-vc-tab>\n\t<a aria-label=\"Pagination Item 1\" href=\"#1600000000006-3\" class=\"vc_pagination-trigger\" data-vc-tabs data-vc-container=\".vc_tta\"><\/a>\n<\/li>\n\n<li class=\"vc_pagination-item\" data-vc-tab>\n\t<a aria-label=\"Pagination Item 2\" href=\"#1600000000004-1\" class=\"vc_pagination-trigger\" data-vc-tabs data-vc-container=\".vc_tta\"><\/a>\n<\/li>\n\n<li class=\"vc_pagination-item\" data-vc-tab>\n\t<a aria-label=\"Pagination Item 3\" href=\"#1700000000001-1\" class=\"vc_pagination-trigger\" data-vc-tabs data-vc-container=\".vc_tta\"><\/a>\n<\/li>\n\n<li class=\"vc_pagination-item\" data-vc-tab>\n\t<a aria-label=\"Pagination Item 4\" href=\"#1600000000005-2\" class=\"vc_pagination-trigger\" data-vc-tabs data-vc-container=\".vc_tta\"><\/a>\n<\/li>\n\n<\/ul>\n<\/div><\/div><\/div><div class=\"vc_empty_space\"   style=\"height: 30px\"><span class=\"vc_empty_space_inner\"><\/span><\/div>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<h2 style=\"margin-bottom: 10px;text-align: center\">Independent Research & Validation<\/h2>\n<p>\u00a0<\/p>\n<p>Hofman, J. et al. (2024): <em>Portable Sensors for Dynamic Exposure Assessments in Urban Environments.<\/em> Sensors, 24(17), 5653. Benchmarking by <strong>VITO<\/strong> and <strong>VMM<\/strong> \u2014 strong BC measurement performance (R\u00b2 = 0.82-0.83). <a href=\"https:\/\/www.mdpi.com\/1424-8220\/24\/17\/5653\" target=\"_blank\" rel=\"noopener\">Read the full paper<\/a><\/p>\n<p>\u00a0<\/p>\n<p>Doldi, A. et al. (2025): <em>Evaluating the performance of the low-cost black carbon sensor bcMeter.<\/em> Gefahrstoffe \u2014 Reinhaltung der Luft, 85(1-2). Independent evaluation by University of Milano-Bicocca (R\u00b2 = 0.77-0.79). <a href=\"https:\/\/boa.unimib.it\/handle\/10281\/566341\" target=\"_blank\" rel=\"noopener\">View publication<\/a><\/p>\n<p>\u00a0<\/p>\n<p>Konrat, F. (2025): <em>Evaluating the performance of low-cost BC sensors for air pollution measurements.<\/em> Master Thesis, University of Potsdam \/ RIFS. 32-day collocation study \u2014 accuracy comparable to established low-cost BC sensors, newer revision outperformed microAeth AE51.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div><div class=\"vc_row wpb_row vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div><div data-vc-full-width=\"true\" data-vc-full-width-temp=\"true\" data-vc-full-width-init=\"false\" class=\"vc_row wpb_row vc_row-fluid vc_custom_1600000000007 vc_row-has-fill\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><h2 style=\"text-align: center\" class=\"vc_custom_heading vc_do_custom_heading\" id=\"download\">Downloads & Getting Started \u2014 bcMeter (DIY)<\/h2><div class=\"vc_empty_space\"   style=\"height: 30px\"><span class=\"vc_empty_space_inner\"><\/span><\/div><div class=\"vc_row wpb_row vc_inner vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-6\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><h4 style=\"text-align: left\" class=\"vc_custom_heading vc_do_custom_heading\" >1. Download Image<\/h4>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p>\nbcMeter (DIY) runs on a Raspberry Pi. Get the preconfigured SD-Card image here.<\/p>\n<p>[eeSFL]<\/p>\n<p><em>If no file is listed, the image is currently being updated.<\/em><\/p>\n<p><a href=\"https:\/\/github.com\/dahljo\/bcmeter-pi\" target=\"_blank\" rel=\"noopener\"><strong>View Github Repository<\/strong><\/a> | <a href=\"\/wiki\" target=\"_blank\" rel=\"noopener\"><strong>View Wiki<\/strong><\/a><\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><div class=\"wpb_column vc_column_container vc_col-sm-6\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><h4 style=\"text-align: left\" class=\"vc_custom_heading vc_do_custom_heading\" >2. Installation Steps<\/h4>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<ol>\n<li><strong>Flash:<\/strong> Unzip file and use <b>Balena Etcher<\/b> to write <code>.img<\/code> to microSD.<\/li>\n<li><strong>Boot:<\/strong> Insert card, wait 2-3 mins. Device creates WiFi.<\/li>\n<li><strong>Connect:<\/strong> Join WiFi <code>bcMeter<\/code> (Pass: <code>bcMeterbcMeter<\/code>).<\/li>\n<li><strong>Setup:<\/strong> Go to <code>http:\/\/bcmeter.local<\/code>.<\/li>\n<li><strong>Important:<\/strong> Trigger an <strong>update<\/strong> immediately after login to expand storage!<\/li>\n<\/ol>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><div class=\"vc_row-full-width vc_clearfix\"><\/div><div class=\"vc_row wpb_row vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div><div data-vc-full-width=\"true\" data-vc-full-width-temp=\"true\" data-vc-full-width-init=\"false\" class=\"vc_row wpb_row vc_row-fluid vc_custom_1766410288945 vc_row-has-fill\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><h2 style=\"color: #ffffff;text-align: left\" class=\"vc_custom_heading vc_do_custom_heading\" >Development Log<\/h2>\n\t<div class=\"wpb_text_column wpb_content_element vc_custom_1766410311469\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p><strong style=\"color: #fff\">June 2026<\/strong><br \/>\nFrom here, bcMeter comes in two lines. The original Raspberry-Pi design continues as bcMeter (DIY): source-available, build it yourself. Alongside it, the assembled bcMeter (Kit and Complete) runs on a new, more compact platform built for everyday use \u2014 it starts in seconds, updates over the air, and has no microSD card or Linux system to look after. The assembled instruments are going through EU conformity assessment (in preparation); until that\u2019s done they\u2019re available as research\/evaluation units on request.<\/p>\n<hr style=\"border-color: #555\" \/>\n<p><strong style=\"color: #fff\">March 2026<\/strong><br \/>\nSo the road to multiwavelength is long and rocky but there\u2019s progress \u2013 there were many factors which forced me to do a complete redesign of hard- and software: bcMeter moved from Raspberry Pi to ESP32. This addresses the CE\/RED conformity path and connectivity issues that limited the Pi version. Boots in seconds, OTA updates in under a minute. A more comprehensive update on that will follow.<\/p>\n<hr style=\"border-color: #555\" \/>\n<p><strong style=\"color: #fff\">December 2025<\/strong><br \/>\nNumerous software bugs fixed in frontend and backend. Recommended: download the new image and do a fresh installation after backing up logs.<\/p>\n<p>Multi-wavelength bcMeter release rescheduled \u2014 development focuses on 2-3 wavelengths for source apportionment with a new ADC over SPI (8 channels).<\/p>\n<hr style=\"border-color: #555\" \/>\n<p><strong style=\"color: #fff\">October 2024<\/strong><br \/>\nbcMeter was part of the VMM CompAIR project which has now concluded.<\/p>\n<hr style=\"border-color: #555\" \/>\n<p><strong style=\"color: #fff\">May 2024<\/strong><br \/>\nNew Board Revision 2024.2 and 3D-printed case released \u2014 major updates in accuracy, usability, and interface.<\/p>\n<hr style=\"border-color: #555\" \/>\n<p><strong style=\"color: #fff\">November 2023<\/strong><br \/>\nThe VMM (Flanders Environment Agency) supports further development of bcMeter for improved accuracy and usability.<\/p>\n<hr style=\"border-color: #555\" \/>\n<p><strong style=\"color: #fff\">August 2021<\/strong><br \/>\nFirst release of bcMeter. Thanks to DUH (Environmental Action Germany).<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div><div class=\"vc_row-full-width vc_clearfix\"><\/div><div class=\"vc_row wpb_row vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div><div id=\"contact\" class=\"vc_row wpb_row vc_row-fluid\"><div class=\"wpb_column vc_column_container vc_col-sm-4\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><div class=\"vc_empty_space\"   style=\"height: 40px\"><span class=\"vc_empty_space_inner\"><\/span><\/div>\n\t<div class=\"wpb_text_column wpb_content_element\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<div class=\"bcm-contact-copy\">\n<p class=\"bcm-contact-kicker\">Contact<\/p>\n<h2>Talk to the project team<\/h2>\n<p>Use this form for research collaborations, validation questions, deployment planning, or existing-device support.<\/p>\n<ul class=\"bcm-contact-list\">\n<li>Planning a device deployment or budget estimate? Start with the research inquiry form.<\/li>\n<li>Have a support case? Include the device name, firmware version, and what changed.<\/li>\n<li>For publications or validation data, point us to the study context and timeline.<\/li>\n<\/ul>\n<div class=\"bcm-contact-actions\"><a href=\"\/inquiry\/\">Research inquiry<\/a><a href=\"\/support\/\">Support<\/a><\/div>\n<\/div>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><div class=\"wpb_column vc_column_container vc_col-sm-8\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><div class=\"vc_empty_space\"   style=\"height: 40px\"><span class=\"vc_empty_space_inner\"><\/span><\/div><style id=\"wpforms-css-vars-418\">\n\t\t\t\t#wpforms-418 {\n\t\t\t\t\n\t\t\t}\n\t\t\t<\/style><div class=\"wpforms-container wpforms-container-full wpforms-render-modern\" id=\"wpforms-418\"><form id=\"wpforms-form-418\" class=\"wpforms-validate wpforms-form wpforms-ajax-form\" data-formid=\"418\" method=\"post\" enctype=\"multipart\/form-data\" action=\"\/de\/wp-json\/wp\/v2\/pages\/29\" data-token=\"d02b96d678fd8df47532607ce373dda3\" data-token-time=\"1781808609\"><noscript class=\"wpforms-error-noscript\">Bitte aktiviere JavaScript in deinem Browser, um dieses Formular fertigzustellen.<\/noscript><div id=\"wpforms-error-noscript\" style=\"display: none;\">Bitte aktiviere JavaScript in deinem Browser, um dieses Formular fertigzustellen.<\/div><div class=\"wpforms-field-container\"><div id=\"wpforms-418-field_1-container\" class=\"wpforms-field wpforms-field-name\" data-field-id=\"1\"><fieldset><legend class=\"wpforms-field-label\">Name <span class=\"wpforms-required-label\" aria-hidden=\"true\">*<\/span><\/legend><div class=\"wpforms-field-row wpforms-field-medium\"><div class=\"wpforms-field-row-block wpforms-first wpforms-one-half\"><input type=\"text\" id=\"wpforms-418-field_1\" class=\"wpforms-field-name-first wpforms-field-required\" name=\"wpforms[fields][1][first]\" placeholder=\"First name\" aria-errormessage=\"wpforms-418-field_1-error\" required><label for=\"wpforms-418-field_1\" class=\"wpforms-field-sublabel after\">Vorname<\/label><\/div><div class=\"wpforms-field-row-block wpforms-one-half\"><input type=\"text\" id=\"wpforms-418-field_1-last\" class=\"wpforms-field-name-last wpforms-field-required\" name=\"wpforms[fields][1][last]\" placeholder=\"Last name\" aria-errormessage=\"wpforms-418-field_1-last-error\" required><label for=\"wpforms-418-field_1-last\" class=\"wpforms-field-sublabel after\">Nachname<\/label><\/div><\/div><\/fieldset><\/div><div id=\"wpforms-418-field_2-container\" class=\"wpforms-field wpforms-field-email\" data-field-id=\"2\"><label class=\"wpforms-field-label\" for=\"wpforms-418-field_2\">Email <span class=\"wpforms-required-label\" aria-hidden=\"true\">*<\/span><\/label><input type=\"email\" id=\"wpforms-418-field_2\" class=\"wpforms-field-medium wpforms-field-required\" name=\"wpforms[fields][2]\" placeholder=\"name@example.org\" spellcheck=\"false\" aria-errormessage=\"wpforms-418-field_2-error\" required><\/div>\t\t<div id=\"wpforms-418-field_4-container\"\n\t\t\tclass=\"wpforms-field wpforms-field-text\"\n\t\t\tdata-field-type=\"text\"\n\t\t\tdata-field-id=\"4\"\n\t\t\t>\n\t\t\t<label class=\"wpforms-field-label\" for=\"wpforms-418-field_4\" >Message Email Name<\/label>\n\t\t\t<input type=\"text\" id=\"wpforms-418-field_4\" class=\"wpforms-field-medium\" name=\"wpforms[fields][4]\" >\n\t\t<\/div>\n\t\t<div id=\"wpforms-418-field_3-container\" class=\"wpforms-field wpforms-field-textarea\" data-field-id=\"3\"><label class=\"wpforms-field-label\" for=\"wpforms-418-field_3\">Message <span class=\"wpforms-required-label\" aria-hidden=\"true\">*<\/span><\/label><textarea id=\"wpforms-418-field_3\" class=\"wpforms-field-medium wpforms-field-required\" name=\"wpforms[fields][3]\" placeholder=\"Tell us what you are working on, what you need, and any relevant device or project context.\" aria-errormessage=\"wpforms-418-field_3-error\" required><\/textarea><\/div><script>\n\t\t\t\t( function() {\n\t\t\t\t\tconst style = document.createElement( 'style' );\n\t\t\t\t\tstyle.appendChild( document.createTextNode( '#wpforms-418-field_4-container { position: absolute !important; overflow: hidden !important; display: inline !important; height: 1px !important; width: 1px !important; z-index: -1000 !important; padding: 0 !important; } #wpforms-418-field_4-container input { visibility: hidden; } #wpforms-conversational-form-page #wpforms-418-field_4-container label { counter-increment: none; }' ) );\n\t\t\t\t\tdocument.head.appendChild( style );\n\t\t\t\t\tdocument.currentScript?.remove();\n\t\t\t\t} )();\n\t\t\t<\/script><\/div><!-- .wpforms-field-container --><div class=\"wpforms-submit-container\" ><input type=\"hidden\" name=\"wpforms[id]\" value=\"418\"><input type=\"hidden\" name=\"page_title\" value=\"\"><input type=\"hidden\" name=\"page_url\" value=\"https:\/\/bcmeter.org\/de\/wp-json\/wp\/v2\/pages\/29\"><input type=\"hidden\" name=\"url_referer\" value=\"\"><button type=\"submit\" name=\"wpforms[submit]\" id=\"wpforms-submit-418\" class=\"wpforms-submit\" data-alt-text=\"Sending...\" data-submit-text=\"Send message\" aria-live=\"assertive\" value=\"wpforms-submit\">Send message<\/button><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/bcmeter.org\/wp-content\/plugins\/wpforms\/assets\/images\/submit-spin.svg\" class=\"wpforms-submit-spinner\" style=\"display: none;\" width=\"26\" height=\"26\" alt=\"Wird geladen\"><\/div><\/form><\/div>  <!-- .wpforms-container --><\/div><\/div><\/div><\/div>\n<div style=\"margin-top: 2em;padding: 1em;border-top: 1px solid #ddd;font-size: 0.85em;color: #666\"><strong>Trademark Notice:<\/strong> bcMeter is an independent, source-available project, not affiliated with Aerosol d.o.o. or Magee Scientific Corporation. AETHALOMETER\u00ae is a registered trademark of Magee Scientific Corporation. <a href=\"\/disclaimer\/\">Read full disclaimer<\/a>.<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Markenhinweis: bcMeter ist ein unabh\u00e4ngiges, quelloffen einsehbares (source-available) Projekt und steht in keiner Verbindung zu Aerosol d.o.o. oder der Magee Scientific Corporation. AETHALOMETER\u00ae ist eine eingetragene Marke der Magee Scientific Corporation. Vollst\u00e4ndigen Haftungsausschluss lesen.<\/p>","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"template-full.php","meta":{"footnotes":""},"class_list":["post-29","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/bcmeter.org\/de\/wp-json\/wp\/v2\/pages\/29","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bcmeter.org\/de\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/bcmeter.org\/de\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/bcmeter.org\/de\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/bcmeter.org\/de\/wp-json\/wp\/v2\/comments?post=29"}],"version-history":[{"count":10,"href":"https:\/\/bcmeter.org\/de\/wp-json\/wp\/v2\/pages\/29\/revisions"}],"predecessor-version":[{"id":622,"href":"https:\/\/bcmeter.org\/de\/wp-json\/wp\/v2\/pages\/29\/revisions\/622"}],"wp:attachment":[{"href":"https:\/\/bcmeter.org\/de\/wp-json\/wp\/v2\/media?parent=29"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}