Datagov Opendata Platform

The Environmental Protection Department released the national manual monitoring data for fine particulate matter (PM2.5). The manual monitoring of PM2.5 is based on the standard testing method, with sampling conducted every three days and continuous sampling for 24 hours to obtain the measurement. As monitoring data requires on-site sampling, laboratory testing and analysis, as well as data quality assurance and quality control procedures, it usually takes 20 days to provide the data.