Organophosphate poisoning
Organophosphate poisoning is poisoning due to organophosphates (OPs). Organophosphates are used as insecticides, medications, and nerve agents. Symptoms include increased saliva and tear production, diarrhea, vomiting, small pupils, sweating, muscle tremors, and confusion. While onset of symptoms is often within minutes to hours, some symptoms can take weeks to appear. Symptoms can last for days to weeks.
Organophosphate poisoning occurs most commonly as a suicide attempt in farming areas of the developing world and less commonly by accident. Exposure can be from drinking, breathing in the vapors, or skin exposure. The underlying mechanism involves the inhibition of acetylcholinesterase (AChE), leading to the buildup of acetylcholine (ACh) in the body. Diagnosis is typically based on the symptoms and can be confirmed by measuring butyrylcholinesterase activity in the blood. Carbamate poisoning can present similarly.
Prevention includes banning very toxic types of organophosphates. Among those who work with pesticides the use of protective clothing and showering before going home is also useful. In those who have organophosphate poisoning the primary treatments are atropine, oximes such as pralidoxime, and diazepam. General measures such as oxygen and intravenous fluids are also recommended. Attempts to decontaminate the stomach, with activated charcoal or other means, has not been shown to be useful. While there is a theoretical risk of health care workers taking care of a poisoned person becoming poisoned themselves, the degree of risk appears to be very small.
OPs are one of the most common causes of poisoning worldwide. There are nearly 3 million poisonings per year resulting in two hundred thousand deaths. Around 15% of people who are poisoned die as a result. Organophosphate poisoning has been reported at least since 1962.
Toxic Substances Control Act of 1976
Children are more susceptible to develop patterns of illness with longtime effect in their health for which chemical exposure can be contributing pediatric disease. The main health problems associated with environmental chemical pollutants are asthma, lead poisoning and obesity. It is estimated that "the annual costs of environmentally attributable diseases in American children due to lead poisoning amounts to $43.4 billion." Toxic chemicals "threaten the health of the developing fetus, babies, young children and teens." It is important to protect children from chemical exposures as they "are less able than adults to break down and excrete toxic compounds." Children are exposed to newly invented chemicals used for consumer products, and is also found in "air, food, water, homes, schools, and communities." Communities living near hot spots present health problems "associated with both social and environmental stressors," this can put a disproportionately burden on families. Therefore, "information on potential toxicity" can help parents to make better decisions about the products they purchase for the use of the children. Information about the toxicity is only available for about "two-thirds of the 3000 high production volume (HPV) chemicals." Policy and regulation to protect vulnerable groups can reduce the exposure of children to toxic substances. For instance, in 2008, the state of Maine implemented the Kid-Safe Act to protect children from exposure to lead in toys "and bisphenol A (better known as BPA) in baby bottles" In January 2016, the Center for Science in the Public Interest released a report entitled "Seeing Red - Time for Action on Food Dyes" which criticized the continued use of artificial food coloring in the United States. The report estimated that over half a million children in the United States suffer adverse behavioral reactions as a result of ingesting food dyes, with an estimated cost exceeding $5 billion per year, citing data from by the Centers for Disease Control and Prevention. The report urges the Food and Drug Administration to take action to ban or curtail the use of such dyes.