AI Article Synopsis
- We propose a cost-effective, passive method for monitoring long-term light-absorbing carbon pollution indoors, using digital images to estimate changes in surface reflectance.
- Preliminary lab tests and indoor environmental assessments across 20 locations showed strong reproducibility of results (0.99) and effective detection limits for monitoring over several months in homes using solid fuels.
- Although the method demonstrates high precision, further validation with reliable measurements is necessary to confirm its overall accuracy.
Article Abstract
We propose a low-cost passive method for monitoring long-term average levels of light-absorbing carbon air pollution in polluted indoor environments. Building on prior work, the method here estimates the change in reflectance of a passively exposed surface through analysis of digital images. To determine reproducibility and limits of detection, we tested low-cost passive samplers with exposure to kerosene smoke in the laboratory and to environmental pollution in 20 indoor locations. Preliminary results suggest robust reproducibility ( = 0.99) and limits of detection appropriate for longer-term (~1-3 months) monitoring in households that use solid fuels. The results here suggest high precision; further testing involving "gold standard" measurements is needed to investigate accuracy.
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|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7348734 | PMC |
| http://dx.doi.org/10.3390/s20123417 | DOI Listing |
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