最后通过多元逐步回归模型计算出各污染源对南京市大气颗粒物中半挥发性有机物的贡献率。

Lastly the percentage contributions of various pollution sources to SVOCs on airborne particulates in Nanjing city were calculated using multiple regress models.

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整个南京地区的大气颗粒物中半挥发性有机物的主要污染源为燃煤源、交通排放源、燃油及矿物燃料残留物排放源、焚烧源，其贡献率分别为：44.0％、31.0％、19.9％、4.7％。

The main pollution sources are coal combustion, traffic emission, the residue of oil or mineral combustion and burning emission which accounts for 44.0%, 31.0% 19.9% and 4.7% of SVOCs, respectively.

youdao

整个南京地区的大气颗粒物中半挥发性有机物的主要污染源为燃煤源、交通排放源、燃油及矿物燃料残留物排放源、焚烧源，其贡献率分别为：44.0％、31.0％、19.9％、4.7％。

The main pollution sources are coal combustion, traffic emission, the residue of oil or mineral combustion and burning emission which accounts for 44.0%, 31.0% 19.9% and 4.7% of SVOCs, respectively.

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