Environmental NGO's position on the global POPs problem 4. I also wish to thank my hosts in the Government of Thailand and want you to know how much I am enjoying my opportunity to visit this delightful city. They can injure human health and the environment at very low concentrations. In some cases, a single POPs molecule can attach to a receptor site in a cell and trigger a cascade of effects.
POPs persist in the environment.
They resist photolytic, chemical and biological degradation. They bioaccumulate in fatty tissues of living organisms. In the environment, their concentrations can magnify by factors of many thousands as POPs work their way up the food chain. POPs are widely distributed across the earth. POPs are products and by-products of human industry that are of relatively recent origin.