Ecological Crisis Due to Chemical Toxicity: Addressing Soil Health for Better Human Health

Author(s): JS Thakur, Ronika Paika

When environmental changes undermine a species' or population's ability to survive, it is said to be in an ecological crisis. Pesticides, particularly persistent organic pollutants (POPs), are among the top ten chemicals and hazardous compounds that the WHO has recognized as being a concern for global health. The overuse and improper handling of agrochemicals is the primary driver of the ecological disaster. According to the GBD 2019, pollution of any type, including air pollution, lead, and other chemicals, causes one in six deaths globally. Industrialization, urbanization, population growth, the burning of fossil fuels, and a lack of adequate national or international chemical policies account for the 66% increase in deaths. Because of lack of awareness, training, and proper expertise regarding agrochemicals, it is particularly challenging to determine the influence on human health or the environment in developing nations. Studies in Northern India have shown evidence of the presence of heavy metals and pesticides in samples of fodder, vegetables, milk, urine, and blood. In addition to signs of genotoxic effect, there were significantly more spontaneous abortions, premature births, stillbirths that were five times as frequent, delay in milestone development, language delays, blue lines in the gums, mottled teeth, and gastrointestinal diseases, which may have been brought on by water contamination with pesticides and heavy metals. The greater rates of cancer including breast, uterus/cervix, ovary cancers of the blood and lymphatic system, oesophagus, and bones, are associated with farming, pesticides exposure, alcohol and smoking. Hence the soil and water have cocktail of pesticides and heavy metals. Pesticides have been widely used, and it is possible to find their remnants in the air, water, and soil. The three most important environmental problems affecting the globe now are pollution, climate change, and biodiversity loss. Various new concepts, including sustainable agriculture reforms and food production that uses sustainable practices, have been inspired by the pressing need for a more sustainable and ecological approach. This review elaborates the extent of pollution due to heavy metals and pesticides with their health impacts and the regulatory measures to overcome this by various methods such as concept of soil security, food security, Natueco farming and multisectoral approach.