Some toxins, such as mercury, persist in the environment and accumulate. Humans or animals often absorb them when they eat fish.
Handling toxic waste carefully can prevent health dangers. Toxic waste incinerators, for example, often burn waste for energy, but this potentially releases toxic chemicals into the air. Household hazardous waste (HHW) is more than you think it is. What's been hiding in your garage or basement or under your kitchen sink can do serious damage to the environment. It can get into the water system. It can hurt plants, animals - and you.
Recycling offers the next best solution to eliminating the use of toxic materials. Not only does recycling save companies money and time spent acquiring new materials, it also diverts waste away from disposal methods, such as burning, that could potentially leak toxins into the ground and air. Toxic waste, like used motor oil for example, often contains metallic debris that you can easily reclaim through filtration.
Ultimately, humanity needs to curb its use of products with toxic chemicals to minimize their potential hazards. Go green... Save the Earth... Recycle waste; these kind of environmental slogans have been used for decades but one only pays heed to it when he/she comes to terms with or can relate to it. Earth is our home, our playground, our future.