Half-Century Ammonia Emissions From Agricultural Systems in Southern Asia: Magnitude, Spatiotemporal Patterns, and Implications for Human Health.

There was a clear trend of increased NH 3 emissions in most grids of Pakistan and India especially in the northern regions, and China, especially in the North China Plain during 1980−2000.

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West Asia was the third largest source of manure‐induced NH 3 emission and showed an increasing trend (Figure 5 ).

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