Low-Cost Sensors (LCS) of fine particulate matter (PM2.5) have been widely used to supplement regular air quality monitoring stations. However, the sensor output is impacted by environmental factors, especially relative humidity, and must be calibrated to yield estimates of concentrations. In this ...
Exposure to ambient particulate matter (PM) air pollution is a leading risk factor for morbidity and mortality, associated with up to 8.9 million deaths/year worldwide. Measurement of personal exposure to PM is hindered by poor spatial resolution of monitoring networks. Low-cost PM sensors may im...
Low-cost sensors (LCS) are a potential solution to overcome these challenges. However, their data quality remains an issue. Here, we present an alternative Machine Learning (ML)-based calibration approach for LCS using Modern-Era Retrospective Analysis for Research and Applications, version 2 (or...
Low-cost sensors for measuring PM2.5 and CO are desirable, but may not yet be ready to replace more established exposure assessment methods. 展开 会议名称: 26th annual conference of the International Society of Exposure Science: interdisciplinary approaches for health and environment: 26th annual ...
The data quality of low-cost sensors has received considerable attention and has also led to PM2.5 warnings. However, the calibration of low-cost sensor measurements in an environment with high relative humidity is critical. This study proposes an efficient calibration and mapping approach based on...
Low-cost sensors are an opportunity to improve the spatial and temporal resolution of particulate matter data. However, such sensors should be calibrated under conditions close to the final ones befo...
It should be noted here that each of the maps used observations from the previous hour, which means that the map labeled with 8:00 UTC used the observations from the low-cost sensors between 7:00 UTC and 8:00 UTC. Following the morning rush hour the concentrations then decrease slightly ...
Several techniques are used to monitor PM concentration. The air quality monitoring stations (AQMS) equipped with certified instrumentation is the most reliable option. However, AQMSs are quite expensive and require regular maintenance. Another option is low-cost sensors (LCS) that seen as&innovative...
However, the data on particulate matter (PM2.5, PM10) monitoring in this area is limited. This study was conducted to develop the particulate matter (PM2.5, PM10) monitoring low cost sensors in order to collect the data on the site. Moreover, develop Cloud Computing model for climate change...
and data models. Despite the limitations of sensors in terms of sensitivity and selectivity, it has been possible to use portable air monitors to determine pollution hotspots around the world. However, limited models for data processing, performance issues when using low-cost devices, in addition ...