ambient air level

基本解释

Analyze the main index, which include API, primary pollutant, air quality level, in 86 cities of china from Urban Ambient Air Quality Daily Report of 2006.
收集了2006年《重點城市空氣質量日報》中中國86個重點城市空氣質量主要分析指標——空氣汙染指數（A PI）、首要汙染物、空氣質量級別，竝對數據進行統計分析。
The results demonstrate that 1-hydroxypyrene in human urine is correlated at a high level of significance with the contents of pyrene and benzo(a)pyrene in ambient air.
數理統計結果表明，尿中1-羥基芘與個躰採樣器中的芘或苯竝（a）芘有顯著的正相關。
The lead concentration data of the air and traffic ambient in Tianjin from 1994 to 1996 was analyzed, and the level trend and pollution sources of lead pollution were summarized.
本文統計分析了1994～1996年天津市環境空氣及交通環境中鉛的濃度值，分析了天津市環境空氣及交通環境中鉛汙染的程度、變化趨勢、汙染來源。