The New Area air quality started well in the first quarter. From January to march, there are 81 days reaching the air quality standard, including 30 days excellent and 51 days moderate, making a year-on-year increase of 12 days, the rate of reaching standard of 90% and increase of 13.3% within the same period. The number of pollution days was 9, a 12-day drop, and the ratio of it was 10%, a 13.3% down.
The main pollutants of the New Area in the first quarter showed that the average concentration of PM10 was 66 micrograms per cubic meter, which was 12% lower than that of the previous year. The average concentration of PM2.5 was 41 micrograms per cubic meter, down 21% from a year earlier, and more than 0.17 times higher than the secondary standard. The monthly average concentration of sulfur dioxide was 17 micrograms per cubic meter, a year-on-year decline of 39%. The concentration of nitrogen dioxide was 33 micrograms per cubic meter per cubic meter, 3% lower than the previous year. All of them met the secondary standard.