What Makes Pesticides a Pollutant?
What makes pesticides a pollutant? Pesticides pollute environment and kill not only target pests, but also other species. Pesticides influence on global warming and ozone layer. The passage of pesticides from the area of application depends on their chemical properties, fixing to soils, water solubility, and resistance to decomposition. Soil structure, water retention, and organic content determine the volume of pesticides that may leave the area of their application.
What makes pesticides a pollutant of abiotic environment?
Pesticides pollute soils and reduce the variety of plants and animals in their natural environments. Pesticides pollute rivers, wells, rain and ground waters. Pesticide concentrations for drinking water may exceed acceptable limits. Pesticides may infiltrate the soils and reach distant waters by means of soil erosion. Water contamination depends on pesticide solubility, weather, soils, plants, and methods of pesticide application. Pesticides pollute air and are carried by the wind to other areas.
What makes pesticides a pollutant of biotic environment?
Pests can become resistant to pesticides due to natural selection. Pesticides kill non-target species and natural enemies of pests. Pesticides may gather in body tissues of animals and endanger food chains. Pesticides provoke hormonal imbalances and suppress reproduction.
What makes pesticides a pollutant for plants?
Pesticides deter nitrogen fixation in soil necessary for the growth of plants. Pesticides produce destructive effect on plant roots and shoot development obstructing growth. Pesticides kill plant pollinators.
What makes pesticides a pollutant for fish, amphibians, and reptilians?
Fish may be affected by contaminated water. Herbicides used to suppress water plants are poisonous to fish. Pesticides provoke behavioral changes in fish that decrease fish populations. Pesticides kill zooplankton that young fish feed on. Decline in amphibians is also linked to pesticides. Pesticides produce toxic effect on frogs. Pesticides diminish reproductive potential of crocodiles, lizards, and turtles.
What makes pesticides a pollutant for birds and animals?
Pesticides kill millions of birds each year due to the accumulation in their bodies. Pesticides kill earthworms, which are food for birds, and in this way reduce populations of birds. Birds may consume pesticide granules, taking them for grains mistakenly. Pesticides cause growth aberrations in bird embryos. Herbicides reduce birds’ habitat.
Pesticides that remain on the food may poison animals. Pesticides destroy sources of animal foods and cause the animals to migrate and change their diets. Pesticide poisoning may embrace the food chain. Pesticides accumulate to toxic levels in the bodies of animals.
What makes pesticides a pollutant for humans?
Pesticides are absorbed through dermal contact, ingestion, and inhalation. Pesticides are damaging to human health. The effect of pesticide pollution depends on the toxicity, duration, and degree of exposure. Children are particularly susceptible to pesticides. Young children may be exposed to pesticides in breast milk. Pesticides provoke skin irritation, genetic and birth defects, tumors, blood and nerve disarrays, endocrine disorders, and even death.