Impact of agricultural emission reductions on fine-particulate matter and public health

doi:10.5194/acp-17-12813-2017

GSTDTAP > 地球科学

DOI	10.5194/acp-17-12813-2017
	Impact of agricultural emission reductions on fine-particulate matter and public health
	Andrea Pozzer, Alexandra P. Tsimpidi, Vlassis A. Karydis, Alexander de Meij, and Jos Lelieveld
	2017-10-27
发表期刊	Atmospheric Chemistry and Physics
出版年	2017
英文摘要	A global chemistry-climate model has been used to study the impacts of pollutants released by agriculture on fine-particulate matter (PM_2.5), with a focus on Europe, North America, East and South Asia. Simulations reveal that a relatively strong reduction in PM_2.5 levels can be achieved by decreasing agricultural emissions, notably of ammonia (NH₃) released from fertilizer use and animal husbandry. The absolute impact on PM_2.5 reduction is strongest in East Asia, even for small emission decreases. Conversely, over Europe and North America, aerosol formation is not immediately limited by the availability of ammonia. Nevertheless, reduction of NH₃ can also substantially decrease PM_2.5 concentrations over the latter regions, especially when emissions are abated systematically. Our results document how reduction of agricultural emissions decreases aerosol pH due to the depletion of aerosol ammonium, which affects particle liquid phase and heterogeneous chemistry. Further, it is shown that a 50 % reduction of agricultural emissions could prevent the mortality attributable to air pollution by ∼ 250 000 people yr⁻¹ worldwide, amounting to reductions of 30, 19, 8 and 3 % over North America, Europe, East and South Asia, respectively. A theoretical 100 % reduction could even reduce the number of deaths globally by about 800 000 per year.
领域	地球科学
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文献类型	期刊论文
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/287864
专题	地球科学
推荐引用方式 GB/T 7714	Andrea Pozzer, Alexandra P. Tsimpidi, Vlassis A. Karydis, Alexander de Meij, and Jos Lelieveld. Impact of agricultural emission reductions on fine-particulate matter and public health[J]. Atmospheric Chemistry and Physics,2017.
APA	Andrea Pozzer, Alexandra P. Tsimpidi, Vlassis A. Karydis, Alexander de Meij, and Jos Lelieveld.(2017).Impact of agricultural emission reductions on fine-particulate matter and public health.Atmospheric Chemistry and Physics.
MLA	Andrea Pozzer, Alexandra P. Tsimpidi, Vlassis A. Karydis, Alexander de Meij, and Jos Lelieveld."Impact of agricultural emission reductions on fine-particulate matter and public health".Atmospheric Chemistry and Physics (2017).