Percentage of Ammonia (NH3) Emissions From Agriculture

General notes: Ammonia (NH3) emissions are strongly related with animal farms and are associated, as a driving force, with acidification and eutrophication. Agriculture is the main source of ammonia emissions, with shares ranging on average between 80% and 99%. Ammonia with sulphur dioxide (SO2) and nitrogen oxides (NOx) contribute to acidification of soil and water when it combines with water in the atmosphere or after deposition. Deposition of ammonia can also raise nitrogen levels in soil and water, which may contribute to eutrophication in receiving aquatic ecosystems. Deposited ammonia can also contribute to the emissions of nitrous oxide, which is a GHG. Ammonia in the atmosphere can also combine with industrial and transport pollution generating secondary particulate pollution. Indicator: Ammonia (NH3) emissions from agriculture as a % of total NH3 emissions. Methodology: Share Ammonia from agriculture/total Ammonia emissions (%): (Total Ammonia emissions from agriculture)/(Total Ammonia emissions) * 100. Data sources: Total Ammonia emissions from agriculture (Gg) from European Monitoring and Evaluation Programme (EMEP). Total Ammonia emissions (Gg) from European Monitoring and Evaluation Programme (EMEP). Link: European Monitoring and Evaluation Programme (EMEP). The indicator in EUROSTAT and OECD frameworks: Eurostat: AEI n.18, OECD: AEI n.2. Definition in the original frameworks: EUROSTAT: Main indicator:: Ammonia emissions from agriculture (ktonnes/yr); Supporting indicator: Share of agriculture in total ammonia emissions. OECD: Share of agricultural ammonia emissions in national total ammonia (NH3) emissions. Data used in the original frameworks: EU: Data provided annually for the NECD (National Emissions Ceiling Directive). OECD: UNECE/EMEP. References: EUROSTAT: IRENA indicator factsheet; DireDate Task 1 Report.

一般备注：氨（NH3）排放与畜牧业密切相关，作为推动力，与酸化和富营养化现象相联系。农业是氨排放的主要来源，平均占比在80%至99%之间。氨与二氧化硫（SO2）和氮氧化物（NOx）结合，当其与大气中的水分结合或在沉降后，会导致土壤和水的酸化。氨的沉降还会提高土壤和水中氮的含量，可能对受纳水生生态系统的富营养化产生影响。沉降的氨也可能导致一氧化二氮（N2O）的排放，后者属于温室气体。大气中的氨还可以与工业和交通污染相结合，生成二次颗粒污染物。指标：农业氨（NH3）排放量占总氨排放量的百分比。方法论：份额农业氨排放量/总氨排放量（%）：（农业氨排放总量/总氨排放总量）* 100。数据来源：农业氨排放总量（Gg）数据来自欧洲监测与评估计划（EMEP）。总氨排放量（Gg）数据来自欧洲监测与评估计划（EMEP）。链接：欧洲监测与评估计划（EMEP）。在EUROSTAT和OECD框架中的指标：EUROSTAT：AEI n.18，OECD：AEI n.2。原始框架中的定义：EUROSTAT：主要指标：农业氨排放量（k吨/年）；辅助指标：农业在总氨排放量中的占比。OECD：农业氨排放量占国家总氨（NH3）排放量的份额。原始框架中使用的数据：EU：每年为国家排放上限指令（NECD）提供的数据。OECD：UNEC/ECE/EMEP。参考文献：EUROSTAT：IRENA指标事实表；DireDate任务1报告。