站點(diǎn) | 空氣質(zhì)量類別分布(天數(shù)) | 首要污染物分布(天數(shù)) | 優(yōu)良率% | 優(yōu)良天數(shù) | 考核天數(shù) | PM2.5優(yōu)良天數(shù) | PM2.5考核天數(shù) | PM2.5優(yōu)良天數(shù)比例 | ||||||||||
優(yōu) | 良 | 輕度污染 | 中度污染 | 重度污染 | 嚴(yán)重污染 | SO2 | NO2 | PM10 | CO | O3 | PM2.5 | |||||||
岳陽(yáng)縣環(huán)保局 | 6 | 21 | 4 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 22 | 3 | 87.1 | 27 | 31 | 29 | 31 | 93.5 |