Air quality in Yuhang, Hangzhou

The air quality in Yuhang, Hangzhou is slightly polluted.

In September 2023, the excellent rate of ambient air in Yuhang District was 76.7%, up by 10.0 percentage point year-on-year; The average concentration of PM2.5 was 22.2 μ g/m3, down 0.9% year on year. The average concentration of PM 10 was 3 1.4 μ g/m3, down 32.8% year-on-year; The concentration of O3~90per was180μ g/m3, down 5.3% year-on-year. From June 5438 to September, the excellent rate of ambient air in Yuhang District was 87.5%, up 6.0 percentage points year-on-year, ranking sixth among Hangzhou 14 districts and counties. The average concentration of PM2.5 was 28.4 μ g/m3, down 6.0% year-on-year, ranking seventh.

The average concentration of PM 10 is 5 1.5 μ g/m3, down 4.8% year-on-year, ranking as10; The concentration of O3~90per was160μ g/m3, down 3.6% year-on-year, ranking sixth. (The data in 2023 are deducted from March 15 ~ 16, 24, April113) June1~ September, 12 Town.

Factors affecting air quality

1. industrial pollution: waste gas, waste water and waste residue in industrial production will pollute air quality.

2. Traffic pollution: Exhaust gas, noise and volatile organic compounds emitted by vehicles will have a negative impact on air quality.

3. Agricultural pollution: pesticides, fertilizers and livestock manure released in agricultural production also have a negative impact on air quality.

4. Garbage disposal: Waste gas and wastewater from landfills and incineration plants will pollute the surrounding air quality.

5. Natural factors: Natural factors such as sandstorms and volcanic eruptions will also have a negative impact on air quality.

6. Atmospheric chemical reaction: pollutants such as ozone, sulfur dioxide and nitrogen oxides produced by atmospheric chemical reaction will also affect air quality.