1、The impact of nitrogen Fertilizer application on air Pollution

We found that nitrogen management can effectively reduce air pollution. We examine the effects of nitrogen fertilizer application on air pollution in China.

2、Synthetic Nitrogen Fertilizer Pollution: Global Concerns and

Abstract The global dependency on synthetic fertilizers has significantly revolutionized the agroecosystem. Excessive use of synthetic N fertilizers (SNF) for rapid agricultural expansion has become the next global threat to the natural ecosystem.

3、How nitrogen compounds in fertilizers and fossil

In most of the future climate scenarios defined by the IPCC, emissions of nitrous oxide remain high as a result of continued agricultural fertilizer use. This implies that ambitious action...

4、Understanding the Impacts of Synthetic Nitrogen on Air and Water

Synthetic nitrogen, now used extensively in conventional fertilizers, helps farmers produce higher yields to feed a growing world population. However, when this nitrogen is not fully utilized by the growing plants, they can be lost from the farm fields and negatively impact air and downstream water quality.

5、Pollution from the fertiliser industry and its impact on air quality

At the same time, excessive fertiliser use also causes nitrogen to remain in the soil, affecting its microbiology while altering the ratio of carbon and phosphorus.

Nitrogen Fertilization Causes Changes in Agricultural Characteristics

The appropriate application of nitrogen fertilizer can have a positive effect on farmers by increasing yield. However, caution should be exercised in the application of excessive nitrogen fertilizers, as excessive nitrogen fertilizers increase the emission of CO, which affects greenhouse gases.

Excessive use of nitrogenous fertilizers: an unawareness causing

Although nitrogen fertilizer contributes substantially to yield enhancement, but excessive use of this manure has posed serious threats to environment and human health.

Multi

Several strategies can be employed to mitigate the environmental pollution caused by excessive application of N fertilizer. First, crop varieties with high N use efficiency should be selected during breeding to achieve the desired yield with less N fertilizer.

Environmental Pollution and Climate Change Implications of

Nitrogen oxides (NOx) and ammonia emissions can also contribute to acid rain, smog, and particulate matter accumulation, all of which can cause respiratory problems (Bittman et al., 2014; Nieder & Benbi, 2022).

Fertilizer and Climate Change

Human-made fertilizers have greatly boosted crop production, letting farmers grow more food on less land. But this uptick in fertilizer use has come at a cost: planet-warming greenhouse gas emissions.

The relationship between excessive nitrogen fertilizer use and smog formation is a complex environmental issue involving agriculture, industry, and meteorology. Below, I will explain in detail why excessive nitrogen fertilizer use can lead to smog from multiple perspectives.

1. Background of Nitrogen Fertilizer Use

Nitrogen fertilizer is indispensable in agricultural production, as it promotes plant growth and increases crop yields. excessive use of nitrogen fertilizer not only negatively impacts soil quality but may also become a significant factor contributing to smog.

2. Impact of Nitrogen Fertilizer on the Atmosphere

During the decomposition of nitrogen fertilizer in soil, ammonia (NH₃) is released. This volatile compound has a strong, pungent odor. When ammonia enters the atmosphere, it reacts with oxygen to form nitrogen dioxide (NO₂), a primary component of acid rain. Additionally, ammonia can be oxidized into nitrate particles (NO₃⁻), which suspend in the air and contribute to smog formation.

3. Specific Effects of Nitrogen Fertilizer on Air Quality

3.1 Direct Emission of Nitrogen Fertilizer

The production of nitrogen fertilizer consumes significant water resources. If untreated, nitrogen-containing wastewater can be discharged into the environment, increasing atmospheric nitrogen levels. This elevates the concentration of nitrogen oxides (NOₓ), heightening the risk of smog formation.

3.2 Long-Term Cumulative Effects of Nitrogen Fertilizer

Long-term, excessive use of nitrogen fertilizer leads to nitrogen accumulation in soil, disrupting its acid-base balance and reducing the activity of soil microorganisms. These microorganisms play a critical role in decomposing organic matter and reducing nitrogen fixation, thereby lowering atmospheric NOₓ levels. When microbial activity declines, nitrogen fixation accelerates, increasing atmospheric NOₓ concentrations and smog risks.

4. Agricultural Policies and Management Strategies

To mitigate the environmental impact of nitrogen fertilizer, governments have implemented policies such as "soil testing and formulated fertilization" in China. This technique tailors fertilizer application to soil conditions and crop needs, reducing unnecessary and excessive use. Additionally, some countries promote organic fertilizer substitution policies, encouraging farmers to use manure and other organic materials to improve soil structure and fertility while decreasing reliance on synthetic nitrogen fertilizers.

excessive nitrogen fertilizer use can indeed contribute to smog formation. The decomposition and emission of nitrogen fertilizer release ammonia and other nitrogen compounds, which react with atmospheric oxygen to form nitrate particles, increasing smog risks. Reducing nitrogen fertilizer usage, adopting科学合理的施肥技术, and strengthening environmental protection measures are essential pathways to mitigate smog.