Ty-Jour T1 - 环境NH3在北印度农村现场的农业活动和气象因素的昼夜变化Y1 - 18-12-2020 N2 - 氨是一种化学活性气体，通过与硝酸盐组合加速颗粒物质形成（NO 3-）和硫酸盐（SO42-）在酸云液滴中，从而降低空气质量。由于工业前的时间，由于农业活动和肥料使用增加，NH3排放量增加了一倍多。在这项研究中，环境NH3监测是在夏季（Kharif作物）的选定期间在夏季（Kharif作物）的选定期间进行了在哈里亚纳州贾吉哈尔区的农村遗址。用Indo酚醛蓝方法制备在1LPm的流速下吸收溶液（1升水中1.4ml H2SO4中的1.4ml H 2 SO 4）的收集的气态NH3样品，并在630nm下使用分光光度计进行分析。在这里，我们展示了从各种农业活动中排出的环境NH3浓度的日夜变异，例如合成肥料，动物粪便，生物n固定，在收获，生物质燃烧，等气象参数中的生物量燃烧。它的排放记录为1至45;63到190;98 to 187 and 56 to 249 µg m-3 during sowing, fertilizer addition, grain filling and biomass burning respectively.Concentration during the sowing period i.e. 1 to 45 µg m-3can be considered as baseline values.Concentration of ambient NH3 reached itsmaxima at night and minima duringmidday.NH3 concentration was observed to be high during night time which might be due to reduced dispersion as the atmospheric conditions are stable at night. 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. JF - Current World Environment JA - VL - 79 IS - 80 UR - www.a-i-l-s-a.com/article/1257/ SP - EP - PB - M3 - 10.12944/CWE.16.Special-Issue1.02 ER -