我是中国辽宁省铁岭市人。
区是昌图县，定为铁岭市绿色种植业和绿色畜牧业的生产区。
The second zone is Changtu county, determined as the production area of pollution-free crop cultivation and animal husbandry of Tieling.
认为铁岭市的空气污染状况与采暖期和气象条件及环境管理措施等有关。
The results show that air pollution situation of Tieling is related closely to heating period in winter and meteorological condition and environmental management level.
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