Sources of fine urban particulate matter in Detroit, MI
Sources of fine urban particulate matter in Detroit, MI
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DOI：
10.1016/j.chemosphere.2007.04.027
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发表时间：
2007-10-01
期刊：
影响因子：
8.8
通讯作者：
Kim, Eugene
中科院分区：
文献类型：
--
作者：
Gildemeister, Amy E.;Hopke, Philip K.;Kim, Eugene
数据从形态趋势网络（ESTA）被用来评估的数量和时间模式的颗粒物来源于当地的工业来源和远程运输在两个地点在底特律，密歇根州：艾伦公园，密歇根州，西南部的底特律和重工业活动的领域;迪尔伯恩，密歇根州，位于底特律的南侧附近的最重工业化的地区。使用正矩阵分解（PMF）和比较来源的贡献在艾伦公园的迪尔伯恩，本地工业源（发电厂，焦炭精炼厂，铁冶炼，垃圾焚烧），本地区域源（汽车和柴油卡车）和远距离源的PM2.5的贡献，可以区分在大底特律。总体而言，在迪尔伯恩测量的平均质量浓度比在艾伦公园测量的高19%。艾伦公园的质量分配为：次生硫酸盐31%，次生硝酸盐28%。土壤8%，混合的老化海盐和道路盐4%，汽油15%，柴油4%，和生物质燃烧3%。在迪尔伯恩，质量分配为：二次硫酸盐25%，二次硝酸盐20%，土壤12%，混合的老海盐和道路盐4%，汽油20%，柴油8%，钢铁5%，混合工业7%。在迪尔伯恩现场，钢铁、土壤以及混合老化海盐和道路盐的影响远高于艾伦公园现场，这表明靠近当地工业园区对当地空气质量有直接的负面影响。(C)2007爱思唯尔有限公司保留所有权利。
Data from the speciation trends network (STN) was used to evaluate the amount and temporal patterns of particulate matter originating from local industrial sources and long-range transport at two sites in Detroit, MI: Allen Park, MI, southwest of both Detroit and the areas of heavy industrial activity; Dearborn, MI, located on the south side of Detroit near the most heavily industrialized region. Using Positive matrix factorization (PMF) and comparing source contributions at Allen Park to those in Dearborn, contributions made by local industrial sources (power plants, coke refineries, iron smelting, waste incineration), local area sources (automobile and diesel truck) and long range sources of PM2.5 can be distinguished in greater Detroit. Overall, the mean mass concentration measured at Dearborn was 19% higher than that measured at Allen Park. The mass at Allen Park was apportioned as: secondary sulfate 31%, secondary nitrate 28%. soil 8%, mixed aged sea and road salts 4%, gasoline 15%, diesel 4%, and biomass burning 3%. At Dearborn the mass was apportioned as: secondary sulfate 25% secondary nitrate 20%, soil 12%, mixed aged sea and road salts 4%, gasoline 20%, diesel 8%, iron and steel, 5%, and mixed industrial 7%. The impact of the iron and steel, soil, and mixed aged sea and road salt was much higher at the Dearborn site than at the Allen Park site, suggesting that close proximity to a local industrial complex has a direct negative impact on local air quality. (C) 2007 Elsevier Ltd. All rights reserved.