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Black carbon (BC) plays a vital role in atmospheric environment and climate change. Temporal variations and transport pathways of BC in Xiamen, China with the impacts of synoptic circulation were investigated in 2014 with Aethalometer. Annual mean BC concentration was 4270 ng m −3 . BC exhibited clear diurnal (seasonal) variations, with the maximum of 6182 (4755) ng m −3 at 6:00 (in spring) and minimum...
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