Question

it is understandable that wastes from houses and industries cause water pollution. but how can fertilizers, which are such useful compounds, cause water pollution?​

Answer 1

Diagnosis, prediction and monitoring are key requirements for the management of agricultural practices that mitigate these harmful impacts on water resources, according to a new publication released today. The executive summary of Water Pollution from Agriculture: A Global Review, A Global Review, a precursor to the launch of the full report next year, highlights that water pollution is an increasing global concern that damages economic growth and the health of billions of people.

According to the report – from the Food and Agriculture Organization of the United Nations (FAO) and the Water, Land and Ecosystems (WLE) program led by the International Water Management Institute – exploding demand for food with high environmental footprints, such as meat from industrial farms, is contributing to unsustainable agricultural intensification and to water-quality degradation.

This growth in crop production has been achieved mainly through the intensive use of inputs such as pesticides and chemical fertilizers. Today, the global market in pesticides is worth more than USD 35 billion per year. Some countries – such as Argentina, Malaysia, South Africa and Pakistan – have experienced double-digit growth in the intensity of pesticide use.

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Answer 2

Fertilizers are useful compounds, however they can cause water pollution by the following means:

1. The chemicals present in fertilizers may be good for the crop, but during rains the fertilizers flow into fresh-water bodies, increasing the concentration of chemicals.

2. The increased concentrations pose a threat to the aquatic life.

3. The water is unsuitable for consumption by humans as well and if consumed leads to ailments.

4. This is a reason behind the water borne diseases occurring in humans and animals.