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《重点城市空气质量日报》中中国86个重点城市空气质量主要分析指标——空气污染指数（A PI）、首要污染物、空气质量级别，并对数据进行统计分析。
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.
数理统计结果表明，尿中1-羟基芘与个体采样器中的芘或苯并（a）芘有显著的正相关。
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.
本文统计分析了1994～1996年天津市环境空气及交通环境中铅的浓度值，分析了天津市环境空气及交通环境中铅污染的程度、变化趋势、污染来源。