报告指出，室外空气污染由汽车尾气排放、大量使用化石燃料、粉尘和焚烧垃圾引起，在低收入的城市地区最为常见。

The outdoor air pollution is most common in low-income, urban areas and is caused by vehicle emissions, heavy use of fossil fuels, dust and burning of waste, the report said.

youdao

报告指出，室外空气污染由汽车尾气排放、大量使用化石燃料、粉尘和焚烧垃圾引起，在低收入的城市地区最为常见。

The outdoor air pollution is most common in low-income, urban areas and is caused by vehicle emissions, heavy use of fossil fuels, dust and burning of waste, the report said.

youdao