新疆三地区总悬浮颗粒(TSP)中单颗粒的微观形貌特征

Morphology Feature of Single Particles in TSP over Three Areas in Xinjiang

用扫描电镜/X射线衍射能谱(SEM/EDX)对喀什地区、乌鲁木齐市米东区、和田地区的总悬浮颗粒(TSP)的单个颗粒进行了形貌观察。经分析得出:喀什地区颗粒物无规则形为34%,片状为54%;和田地区的颗粒物片状为80%,球形为12%;乌鲁木齐市米东区的颗粒物均匀球形蜂窝聚集态为90%。对此作来源解析可以认为:乌鲁木齐市米东区的TSP主要来源是燃烧排放的飞灰及在大气中形成的二次粒子居多,而喀什地区及和田地区的TSP主要来源为土壤及矿物颗粒灰尘。

Single particle morphology of total suspended particles （TSP） was observed by the scanning electron microscopy / X- ray diffraction specavscpy （SEM/EDX）, that came from Kashi, Midong of Unanqi, Hetian Prefecture. The paper obtained by the analysis： particles irregular shape was 34 96 and flake shape was 54 % in Kashi prefecture, Hefian prefecture particles flake was 80% and spherical was 12%, Midong of Ummqi particles uniform spherical cellular aggregation state was 90 %. The dust source analysis could be considered： Midong of Urumqi TSP the main source was e.ombustion emissions of fly ash and the formation of secondary particles in the atmosphere mostly, Kashi and Hetian Prefecture TSP major dust source was soil and mineral particles.