沈阳市建成区环境空气铅浓度时空分异明显,铅含量平均值为1.877μg/m3,范围值0.345~5.330μg/m3;大气铅空间分异首先表现为在市区形成4个铅浓度分布集中区,其中工业区>商业区>二类混合区>一类混合区>居民文教区>对照区,再次为大气中铅浓度随着距污染源距离的增加逐渐降低;交通枢纽区日变化规律是大气铅浓度一日之内出现两个高峰期(8:00-9:00和17:00-18:00),与车流量变化趋于一致。
The disciplinary of the temporal and spacial distribution of air lead content in Shenyang city is obvious, the average value of lead content is 1.877μg/m3, the range of the value is 0.345~5.330 μg/m3. The temporal and spacial distribution of air lead in Shenyang city have two characteristics. Firstly, there are four focus area of lead content in city, the order of the lead content is industrial district>commercial district>the secondaiy mixed district>the first mixed district>residential-cultu...