Positive and negative effects of chemical pesticides
Bad effects of chemical pesticides
The chemical pesticides cause the chemical pollution for the soil , the water and the air , they cause serious health risks such as the cancer , the nervous system diseases and the reproductive problems in people who exposed to the pesticides through home and garden exposure .
They can damage the agricultural land by harming the beneficial insect species , the soil microorganisms , and the worms which naturally limit the pest populations and maintain the soil health .
The pesticides are the toxic substances which released into our environment to kill the living things , They kill the weeds , the insects , the fungus , the rodents and others .
The use of chemicals helped increase the productivity but they affect on the human health and safety , they can cause many types of cancer in the humans , the leukemia , the brain , the bone , the breast , the ovarian , the prostate , the testicular and the liver cancers .
The children who live at homes where their parents use the pesticides are twice as likely to develop the brain cancer versus those that live in residences in which no pesticides are used .
You know that the children can not fight the toxic pesticides into their systems as they have not developed their immune systems , the nervous systems , and detoxifying mechanisms completely .
Short exposures to some pesticides may kill or sicken the wildlife ? They are toxic to the living organisms , They cause the air pollution when they are suspended in the air as the particles are carried by the wind to other areas , They reduce the concentrations of plant nutrients in the soil such as nitrogen and phosphorous , They weaken the plant root systems and the immune systems .
Many bees and butterflies are lost , they are the pollinators which do cross-pollination naturally , and they play an important role in the plant cycles and evolution , and the plants that are fertilized using pesticides grow faster .
They are used in farming to control the pests , While all pesticides can harm the humans , the insecticides and the herbicides cause most human poisoning , The chemical pesticides affect the humans by the ingestion , the inhalation and the dermal absorption .
Benefits of chemical pesticides
The crop protection technologies affect on the cost of food , Where without them , the food production would decline , Many fruits and vegetables would be in short supply and the prices would rise .
They are used to control the termites , the roaches , the ants , the rats and other pests , they allow the consumers to have high-quality crops that is free of insect blemishes and insect contamination .
They are used to protect the gardens , the public parks , playing fields , the lakes and the ponds for public enjoyment , Aflatoxins attack the agricultural crops , and the insect control is necessary to prevent its passage from the insect to the plant , Aflatoxin is a carcinogen .
Aflatoxin can cause the liver cancers to the humans , it causes lower the body’s normal immune response , and it can impair the growth in the children , The crop protection chemicals are used to control the insect damage that leads to aflatoxin contamination .