NQ&A
空(kong)(kong)(kong)氣(qi)(qi)(qi)污(wu)(wu)(wu)染指(zhi)(zhi)數(Air pollution Index, 簡稱API)就(jiu)是(shi)將(jiang)常規監測的(de)(de)(de)(de)幾種空(kong)(kong)(kong)氣(qi)(qi)(qi)污(wu)(wu)(wu)染物濃(nong)(nong)度(du)(du)(du)簡化(hua)成為單一(yi)的(de)(de)(de)(de)概念(nian)性指(zhi)(zhi)數值(zhi)(zhi)形(xing)式，并分(fen)級(ji)表(biao)征空(kong)(kong)(kong)氣(qi)(qi)(qi)污(wu)(wu)(wu)染程度(du)(du)(du)和(he)(he)空(kong)(kong)(kong)氣(qi)(qi)(qi)質量狀(zhuang)況，適合于表(biao)示城市的(de)(de)(de)(de)短期空(kong)(kong)(kong)氣(qi)(qi)(qi)質量狀(zhuang)況和(he)(he)變(bian)化(hua)趨勢(shi)。空(kong)(kong)(kong)氣(qi)(qi)(qi)污(wu)(wu)(wu)染指(zhi)(zhi)數是(shi)根據空(kong)(kong)(kong)氣(qi)(qi)(qi)環境質量標(biao)準(zhun)(zhun)和(he)(he)各項(xiang)污(wu)(wu)(wu)染物的(de)(de)(de)(de)生態環境效(xiao)應及(ji)其對人(ren)體健(jian)康(kang)的(de)(de)(de)(de)影響來確(que)定(ding)污(wu)(wu)(wu)染指(zhi)(zhi)數的(de)(de)(de)(de)分(fen)級(ji)數值(zhi)(zhi)及(ji)相應的(de)(de)(de)(de)污(wu)(wu)(wu)染物濃(nong)(nong)度(du)(du)(du)限(xian)值(zhi)(zhi)。空(kong)(kong)(kong)氣(qi)(qi)(qi)質量周報所用的(de)(de)(de)(de)空(kong)(kong)(kong)氣(qi)(qi)(qi)污(wu)(wu)(wu)染指(zhi)(zhi)數的(de)(de)(de)(de)分(fen)級(ji)標(biao)準(zhun)(zhun)是(shi):(1)空(kong)(kong)(kong)氣(qi)(qi)(qi)污(wu)(wu)(wu)染指(zhi)(zhi)數(API)50點 對應的(de)(de)(de)(de)污(wu)(wu)(wu)染物濃(nong)(nong)度(du)(du)(du)為國(guo)家空(kong)(kong)(kong)氣(qi)(qi)(qi)質量日均值(zhi)(zhi)一(yi)級(ji)標(biao)準(zhun)(zhun); (2)API 100點對應的(de)(de)(de)(de)污(wu)(wu)(wu)染物濃(nong)(nong)度(du)(du)(du)為國(guo)家空(kong)(kong)(kong)氣(qi)(qi)(qi)質量日均值(zhi)(zhi)二級(ji)標(biao)準(zhun)(zhun);(3)API 200點對應的(de)(de)(de)(de)污(wu)(wu)(wu)染物濃(nong)(nong)度(du)(du)(du)為國(guo)家空(kong)(kong)(kong)氣(qi)(qi)(qi)質量日均值(zhi)(zhi)三級(ji)標(biao)準(zhun)(zhun);(4)API更高值(zhi)(zhi)段(duan)的(de)(de)(de)(de)分(fen)級(ji)對應于各種污(wu)(wu)(wu)染物對人(ren)體健(jian)康(kang)產生不同影響時的(de)(de)(de)(de)濃(nong)(nong)度(du)(du)(du)限(xian)值(zhi)(zhi)。
根據(ju)我(wo)國空氣(qi)污(wu)染(ran)(ran)(ran)(ran)特(te)點和(he)污(wu)染(ran)(ran)(ran)(ran)防治重點, 目(mu)(mu)前計入空氣(qi)污(wu)染(ran)(ran)(ran)(ran)指數的項(xiang)目(mu)(mu)暫定為: 二氧化硫、氮氧化物(wu)和(he)可吸入顆粒(li)物(wu)。隨著環境保護工作的深入和(he)監測技術水平的提(ti)高,將調整(zheng)增加其它污(wu)染(ran)(ran)(ran)(ran)項(xiang)目(mu)(mu),以便更為客觀地反映污(wu)染(ran)(ran)(ran)(ran)狀(zhuang)況。
