NEET BIOLOGY

Detailed explanation-1: -Chronic exposure is continuous or repeated contact with a toxic substance over a long period of time (months or years). If a chemical is used every day on the job, the exposure would be chronic. Over time, some chemicals, such as PCBs and lead, can build up in the body. Chronic exposures can also occur at home.

Detailed explanation-2: -weakening of the immune system. development of allergies or asthma. reproductive problems and birth defects. effects on the mental, intellectual or physical development of children.

Detailed explanation-3: -Chronic (long-term) effects may take years to show up. They are usually caused by regular exposure to a harmful substance over a long period of time. These effects are usually permanent. Some chemicals cause both acute and chronic effects.

Detailed explanation-4: -Routes of exposure How can chemicals enter the body? Exposure normally occurs through inhalation, skin or eye contact, and ingestion. Inhalation The most common type of exposure occurs when you breathe a substance into the lungs.