Details to be revealed, but there is likely to be an expansion of the pollutant targets to include nitrogen oxide, ammonia and, possibly, PM2.5 small particulate matter.

细节还有待发布，但是扩大后的污染物治理目标可能会将二氧化氮、氨和PM 2.5包括进去。

youdao

Particulate matter, a large proportion of road dust, is the chief pollutant of atmosphere pollution in Beijing.

颗粒物是北京市大气污染的首要污染物，其中交通扬尘对颗粒物浓度的贡献较大。

youdao

Atmospheric particulate matters, a main atmospheric pollutant that currently affect Chinese urban air quality, can bring important effects go global climate, urban visibility and human health.

大气颗粒物是当前影响我国城市空气质量的主要大气污染物，对气候、城市能见度和人体健康等具有重要影响。

youdao

The government has had some success targeting primary pollutants, but analysts say it is just beginning to target secondary pollutant problems, including particulate matter that is harmful to human health.

WSJ: China's Pollution Fight Faces Resistance