Levels of Air Particulates With Different Diameters and the Distribution of Heavy Metals in the Particulates During the Period of Heating Equipments Used
- VernacularTitle:采暖期大气中不同粒径颗粒物污染及其重金属分布状况
- Author:
Zhiqing LIN
;
Zhuge XI
;
Danfeng YANG
- Publication Type:Journal Article
- Keywords:
Air pollution;
Particulates matter;
Heavy metals
- From:
Journal of Environment and Health
1993;0(01):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To understand the pollution of particulate matters and the distribution of heavy metals in particulate matters. Methods Samples were collected with auto-sampling instrument for 32 consecutive days in heating period of Dec. 2003-Jan,2004, in a central area of Tianjin. The heavy metals were detected with atomic absorption spectrum, atomic fluorescence spectrum and plasma emission spectrum, 9 heavy metals were measured quantitatively. Results The rates of over standards for daily mean of TSP, IP, PM2.5 in heating period were 54.55%, 57.58%, 84.85% respectively. Content of some heavy metals such as Cd, Pb, Ni in the particulate matters were higher. Conclusion Air pollution with particulates in heating period is serious. PM2.5 carries more heavy metals than TSP and IP, so it is much more harmful to human health.
