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INHALABLE PARTICULATE MATTER CHARACTERIZATION IN A MEDIUM-SIZED URBAN REGION IN BRAZIL (SAO JOSE DOS CAMPOS TOWN) - PART I: MORPHOLOGY
被引:2
|作者:
Ferreira, Tatiane Morais
[1
]
Forti, Maria Cristina
[1
]
Maciviero Alcaide, Roberta Lee
[1
]
机构:
[1] Inst Nacl Pesquisas Espaciais, Ctr Ciencia Sistema Terr, Lab Associado Pesquisa Biogeoquim Ambiental, BR-12227010 Sao Jose Dos Campos, SP, Brazil
来源:
QUIMICA NOVA
|
2013年
/
36卷
/
09期
基金:
巴西圣保罗研究基金会;
关键词:
inhalable particulate matter (PM10);
particle morphology;
scanning electron microscopy (SEM-EDS);
ATMOSPHERIC PARTICLES;
AIR-POLLUTION;
PAULO;
PM10;
AREA;
EMISSIONS;
AEROSOLS;
COARSE;
PM2.5;
FINE;
D O I:
10.1590/S0100-40422013000900018
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
In this study, the concentration and morphological characteristics of inhalable particulate material (PM10) were evaluated and associated with climatic conditions. The mean annual concentration was 11.0 mu g m(-3), varying between 0,647 mu g m(-3) and 36.8 mu g m(-3). Wind speed has a higher influence on PM10 dispersion, but direction was associated with particle source. During the wet period, wind speed is the main dispersion factor, while speed and direction both are important during the dry period. Based on the morphological characteristics, it is concluded that biogenic particles prevail during the rainy season and terrigenous particles during the dry period, depending on the wind direction and intensity.
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页码:1380 / 1387
页数:8
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