Monthly report on environmental quality in Huangpu District in September 2023: In September 2023, the air pollution index AQI was in excellent grade for 26 days, with an excellent rate of 83.9% (effective sampling days 3 1 day), which was the same as that of the whole city (83.9%) and higher than that of the same period last year (64.5%19.4 percentage points.
This month, the air quality in Huangpu District is generally good, with light pollution for 4 days and moderate pollution 1 day. The main pollutant is ozone. In August, 2023, the average concentration of sulfur dioxide (SO2) in Huangpu District was 5 μ g/m3, which did not exceed the annual average of the secondary standard (60 μ g/m3) in People's Republic of China (PRC) Ambient Air Quality Standard.
The average concentration of nitrogen dioxide (NO2) is 1.8 μ g/m3, which does not exceed the annual average of Grade II standard (40 μ g/m3). The average concentration of inhalable particulate matter (PM 10) is 29 μ g/m3, which does not exceed the second-class standard annual average (70 μ g/m3). The average concentration of fine particulate matter (PM2.5) is 17 μ g/m3, which does not exceed the annual average of Grade II standard (35 μ g/m3).
The 24-hour average of the 95th percentile of carbon monoxide (CO) is 0.6 mg/m3, which does not exceed the 24-hour average of the secondary standard (4.0 mg/m3); The 90th percentile average value of ozone (O3) is 174 μ g/m3, which exceeds the national second-class standard average value (160 μ g/m3).
Meteorological changes in Huangpu District
Huangpu District belongs to subtropical monsoon climate, with rich heat sources, long frost-free period and abundant rainfall. Huangpu District is located in the south of the Tropic of Cancer, with low latitude and large solar radiation angle. The annual solar radiation heat is 106.7 kcal/cm2, the annual average sunshine hours are 1906 hours, and the sunshine rate is 43%. Abundant heat resources and abundant sunshine are beneficial to the growth of tropical agricultural and forestry crops.
This area has the characteristics of long summer and short winter, warm all year round, occasional extreme cold, long frost-free period and suitable for farming in four seasons. The annual average temperature is 265,438 0℃, the average temperature in Leng Yue in June is 65,438 03.3℃, and the average temperature in July in the hottest month is 28.4℃, with little annual change.
The annual rainfall in the whole region is 1694 mm, mainly from April to September, accounting for 82% of the annual rainfall. Abundant rainfall, rain and heat at the same time, is very beneficial to the growth of crops such as rice and sugarcane, which like temperature and need water.
Reference to the above content: Baidu Encyclopedia-Huangpu District