作者@article {CWE / 1796/2020 ={} ={}当前世界环境》杂志上的出版商= {},title ={环境NH3的日变化与农业活动和气象因素在农村网站在印度北部},年={},月={},体积= {79},url = {www.a-i-l-s-a.com/article/1257/},页面= {17-31},氨是一种化学活性气体，它与酸性云滴中的硝酸盐(NO3−)和硫酸盐(SO42-)结合，加速颗粒物的形成，从而降低空气质量。自前工业时代以来，由于农业活动和化肥使用的增加，全球NH3排放量增加了一倍多。在这项研究中，在哈里亚纳邦Jhajjar地区的一个农村地点，在夏季选定时段(旱作作物)对环境NH3进行了监测。采集的气态NH3样品在1 LPM的流速为1 LPM的吸收液中(1升水1.4ml H2SO4)，用吲哚酚蓝法制备，在630nm处用分光光度计分析。本文研究了不同农业活动(如合成肥料、动物粪便、生物固氮、收获后的作物残渣、生物质燃烧等)排放的NH3浓度与气象参数的昼夜变化。其排放量记录为1至45;63年到190年;播种、施肥、籽粒灌浆和生物质燃烧的量分别为98 ~ 187 μ g m-3和56 ~ 249 μ g m-3。以播种期浓度1 ~ 45µg m-3为基线值。大气NH3浓度在夜间达到最大值，中午达到最小值。NH3浓度在夜间较高，这可能是由于大气条件在夜间稳定时分散减少所致。 Concentration of NH3 is majorly influenced by wind speed and wind direction & its dependence on these meteorological parameters suggested a local source influence indicating that the nearbyagricultural fields might be the major NH3contributors at the observational site.This study suggests that the knowledge of NH3 levels measured at various stages can help in implementing N efficient management system and emissions can be reduced by minimizing the Nitrogen (N) input during different stages. These measurements are also helpful in making fertilizer policy, and guidelines for farmers.}, number = {80}, doi = {10.12944/CWE.16.Special-Issue1.02} }