Many substances can be present in drinking water, either as part of water treatment or from environmental contamination, and some may pose health risks.
Chlorine and Chloramine: These chemicals are added to disinfect water and kill germs. While effective against bacteria, they can cause irritation to the skin, eyes, and respiratory system in some people.
Fluoride: Added in some areas to prevent tooth decay. Some studies debate potential long-term effects, including skeletal or dental concerns if levels are excessive.
Heavy Metals: Lead, mercury, and arsenic can enter water from aging pipes or environmental pollution. These metals are toxic and can affect the nervous system, kidneys, and other organs.
Nitrates: Often from agricultural fertilizers, high nitrate levels in drinking water can reduce blood oxygen in infants, causing a condition known as methemoglobinemia.
Pesticides and Herbicides: Chemicals such as atrazine may contaminate water sources. Some research indicates potential hormone-disrupting effects in humans and wildlife.
Microplastics: Tiny plastic particles have been detected in water. The long-term health effects of ingesting microplastics are not yet fully understood.
Pharmaceuticals: Trace amounts of medications, hormones, and antidepressants can enter water through human and animal waste. The health impact of chronic low-level exposure is still under study.
