Environmental Science and Engineering Department, Liaoning Technical University, Fuxin, 123000, China.
Safety Science and Engineering Department, Liaoning Technical University, Fuxin, 123000, China.
Environ Sci Pollut Res Int. 2021 Aug;28(30):40151-40159. doi: 10.1007/s11356-020-11378-8. Epub 2020 Oct 29.
In order to improve and establish the localized source profile of PM in Fuxin, the ashes under dust catcher were collected from four typical coal-fired power plants in Fuxin and twenty-eight components were measured. The source profile of PM in the soot of the four coal-fired power plants was established. SO was the most abundant component in the PM of the soot of the four coal-fired power plants, followed by Ca and organic carbon (OC). The content of element components in PM smoke ranges from 5.06 to 10.97%, the content of ionic components ranges from 36.53 to 48.59%, and the total carbon content ranges from 9.43 to 11.36%. The divergence coefficient of PM source profile in Fuxin coal burning smoke is mostly similar to that of Fushun, whereas the divergence coefficient of Colorado reaches 0.65, indicating that Fuxin coal burning power plant smoke has no similarity to Colorado. The order of the geological accumulation index of Ni, Cu, V, Mn, and Cr was Cr (4.58) > Mn (4.42) > V (4.38) > Cu (4.09) > Ni (4.06), showing a heavy pollution level. The health risk assessment model recommended by the USEPA was used to assess the health risk of heavy metals in soot of coal-fired power plants, and the non-carcinogenic risk values of As for children and adults were 45.7 and 4.90, respectively. The carcinogenic risk values of Cr for adults and children were the highest, with values of 3.66 × 10 and 2.06 × 10, respectively, followed by As.
为了改进和建立阜新市本地化的 PM 源谱，在阜新的四个典型火力发电厂中收集了除尘器下的灰分，并测量了 28 个成分。建立了四个火力发电厂烟尘中 PM 的源谱。在四个火力发电厂烟尘中 PM 的最丰富的成分是 SO，其次是 Ca 和有机碳（OC）。烟尘中元素成分的含量范围为 5.06%至 10.97%，离子成分的含量范围为 36.53%至 48.59%，总碳含量范围为 9.43%至 11.36%。阜新燃煤烟尘 PM 源谱的发散系数大多与抚顺相似，而科罗拉多的发散系数达到 0.65，表明阜新燃煤电厂烟尘与科罗拉多没有相似性。Ni、Cu、V、Mn 和 Cr 的地质累积指数的顺序为 Cr（4.58）>Mn（4.42）>V（4.38）>Cu（4.09）>Ni（4.06），表明存在严重的污染水平。采用美国环保署推荐的健康风险评估模型，对燃煤电厂烟尘中重金属的健康风险进行评估，As 对儿童和成人的非致癌风险值分别为 45.7 和 4.90。Cr 对成人和儿童的致癌风险值最高，分别为 3.66×10 和 2.06×10，其次是 As。
