Why people ignore pesticide residues and how it affects us?

  • Pesticide residues seem to be inevitable for most people and they think it’s not a big deal since they have been eating for decades. Why are they so careless about pesticide residues? Is it really not dangerous? Does the current pesticide residue standard safe enough?

    Examples of ”ecological disaster”

    According to Australian Broadcasting and Television ABC, in March of this year, about 700 native birds in the South Australian region died of pesticide.

    According to the US Fishing and Hunting Bureau, in the United States, an average of 72 million birds die each year from the use of pesticides. The thinning of eggshells caused by DDE has led to a sharp decline in the number of bird populations in Europe and North America.

    This is just the tip of the iceberg.

    In order to control plant diseases and insect pests, more than 5.6 million tons of chemical pesticides are sprayed into the natural environment every year, but only about 1% of them actually work, and the remaining 99% are dissipated by soil, air and biological effects.

    The redistribution of pesticides in the environment has spread the scope of their pollution, causing pesticide residues in the global atmospheric waters, soils and organisms.

    I still remember the picture of the first contact with pesticides when I was young.

    At that time, in order to kill ants and insects, the health department's team sprayed chemicals, and within two hours, people could not enter the house.

    Nowadays, because these sprays are beneficial to crops, they can increase their yield and economic benefits. In the field, farmers have been spraying pesticides to remove grass and remove insects. It has long been commonplace.

    When the weather is hot, the sprayed pesticides will be evaporated to become more unstable and float to other areas, which will not only harm the local wild species and people through polluted air, but will even enter the troposphere of the atmosphere to form tropospheric ozone.

    Water pollution caused by pesticides can cause many health and environmental hazards, because contaminated water sources are often used for many purposes, such as agricultural irrigation, cleaning and drinking, and the impact of pollution is multi-dimensional:

    From the direct harm to human health, to the poisoning of food production and through the food chain that affects the ecosystem, it affects the specific life of the ecosystem, which in turn triggers ecological imbalances in the area.

    Water pollution can also poison life in rivers that people use as food, and affect life in rivers.

    But this is not the only impact of pesticide pollution. It also causes genetic, physical, and behavioral changes in certain species, making it easier for them to be captured by predators, thereby accelerating the extinction of the species in its habitat.

    One example that has been discovered is that cockroaches have found that their ovaries become thinner when exposed to pesticide residues, and thus affect their reproductive cycle, as well as cause behavioral changes: the reaction will be slower and easier to prey.

    High-dose use of chemical fertilizers, pesticides, and other chemicals that can harm soil biodiversity can have a negative impact on soil retention.

    The granules of pesticides, depending on their chemical type and nature, will have an impact on the transportation process in the soil and eventually have a long-term negative impact on soil quality by hindering the decomposition and decay process in the soil.

    Why some people ignore?

    Because it’s invisible and untouchable?

    Starting from the earliest heavy-use organochlorine pesticides DDT and 666, nearly 3,000 kinds of chemical pesticides in the four major categories have been “pushed” to billions of crops.

    The pesticides on the surface or inside of fruits and vegetables remain there in milligrams per kilogram. As consumers, they have no way of knowing how much residue, which is invisible and intangible. These substances that are completely unnecessary of the human body are lurking in with fruits and vegetables as ordinary consumption. There is no resistance for them.

    Does people really ignore it?

    The answer is no. In the era when technology products are almost explosively developed and applied, apart from professionals, others who want to fully understand are almost impossible things.

    There are thousands of chemical pesticides licensed for agricultural production. For consumers, the names of these chemicals cannot be understood, not to mention the more professional terms such as toxicity mechanism and length of drug residues.

    Most consumers are just helpless. In the face of the chemicals that have entered the agricultural products, they can only be passively accepted.

    But some people have a strong chance of luck and think that it has not been a big deal for many years.

    From the perspective of big data, cancer has become more common and younger, and it has become a common disease. From the mechanism of poisoning and killing of chemical pesticides, the ingested pesticide residues must have a strong correlation with this.

    However, chemical pesticides have been used for a large area for decades, and there has been no epidemiological investigation of pesticide-cancer. There have been many studies on the neurodevelopment and genotoxicity of chemical pesticides, and no epidemiological investigation has been conducted. There is also no epidemiological investigation of the association between the reproductive toxicity of pesticides and the rapidly increasing infertility rate in recent years.

    Chronic toxicity or reproductive toxicity, on the one hand, the consequences of these toxicities will take many years, and they will behave differently in different individuals. On the other hand, the causes of the consequences include other factors besides pesticide residues.