Fertilizers are commonly known to be used to enhance plantation growth, but excess applications or improper use can lead to the runoff of nutrients into nearby water bodies, such as rivers, lakes and ground water. This runoff can result in high levels of nitrogen and phosphorus in the water, leading to harmful algal blooms, low oxygen levels and other environmental issues. In addition, some fertilizers may contain heavy metals, such as arsenic, cadmium and lead, which can also pose health risks if consumed through contaminated water. Overall, it is important to manage the use of fertilizers and its disposal to minimize their impact on water quality.