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Reactive halogen from domestic coal burning aggravates winter air pollution


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IMAGE: Coal burning from rural households emits reactive bromine gases and particulate halogens. Daytime sunlight-assisted processes, possibly involving nitrate, activate particulate Br to produce HOBr and BrCl. BrCl is also produced.
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Credit: @Science China Press
Halogen atoms (Cl and Br) strongly influence the atmospheric chemical composition. Since 1970s, scientists discovered that these atoms were responsible for depletion of ozone in the stratosphere and ground-level ozone of the Arctic. In the past decade, there is emerging recognition that halogen atoms also play important roles in tropospheric chemistry and air quality. However, the knowledge of halogen atoms in continental regions is still incomplete. ....

United States , Hong Kong , Tao Wang , Claude Bernard Lyon , Xiang Peng , Weihao Wang , Hong Kong Polytechnic University , Research Center , Institute Of Physical Chemistry Rocasolano , Colorado State University , Shandong University , Fudan University , Shandong Jianzhu University , Eco Environmental Sciences , Chinese Academy , Physical Chemistry Rocasolano , Univ Lyon , ஒன்றுபட்டது மாநிலங்களில் , ஹாங் காங் , தாவோ வாங் , கிளாட் பெர்னார்ட் லியோன் , கிஷியாங் பெங் , ஹாங் காங் பாலிடெக்நிக் பல்கலைக்கழகம் , ஆராய்ச்சி மையம் , கொலராடோ நிலை பல்கலைக்கழகம் , சாண்டோங் பல்கலைக்கழகம் ,