Beijing Municipal Administration for Market Regulation released a local standard “Technical specification for grid monitored ambient air particulate matter assessment” (DB11/T 1819-2021) On March 29, 2021. The standard will take effect on July 1, 2021.
The standard is the first local standard to stipulate assessment methods for grid monitoring of air quality and will be applied to the assessment of particulate matter under the Beijing Three-Year Action Plan for Blue Sky Defense. The following is a summary of the standard.
Definition of terms
A method of classifying a target area into different grids according to various regulatory requirements and environmental characteristics and conducting real-time monitoring of the concentration of the relevant pollutants in each grid.
Scope of application
Assessment and management of ambient air particulate matter in each administrative region covered by grid monitoring.
Total Suspended Particulates (TSP)
Data Statistics Requirement
Statistics of average concentration values for a minimum of 45 minutes per hour, 20 hours per day, 27 days per month, 81 days per quarter, and 324 days per year.
For the original text of the above standard, please refer to the following URL (in simplified Chinese)