DDT (Dichloro-Diphenyl-Trichloroethane) is a non-biodegradable pollutant. Non-biodegradable pollutants are those pollutants that cannot be broken down by natural processes and remain in the environment for a long time. DDT was widely used as a pesticide in the mid-20th century to control insect-borne diseases such as malaria and typhus. However, it was later found to have harmful effects on the environment and human health.

Effects on the environment:
1. Persistence: DDT is a persistent organic pollutant and can remain in the environment for many years without breaking down.
2. Bioaccumulation: DDT accumulates in the fat tissues of animals and can biomagnify through the food chain, resulting in high concentrations in top predators.
3. Toxicity: DDT is toxic to a wide range of non-target organisms, including birds, fish, and insects.

Effects on human health:
1. Carcinogenicity: DDT has been classified as a possible human carcinogen by the International Agency for Research on Cancer (IARC).
2. Endocrine disruption: DDT is an endocrine disruptor and can interfere with hormone systems in humans and wildlife.
3. Neurotoxicity: DDT can cause neurotoxic effects in humans, including seizures and tremors.

In conclusion, DDT is a non-biodegradable pollutant that has harmful effects on the environment and human health. Its use has been banned or restricted in many countries, but it continues to be a concern due to its persistence and ability to biomagnify through the food chain.

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