Why is incineration a preferred method?
In many locations throughout the world, waste is simply dumped on unused ground where it is left to decompose over time. The decomposing waste provides a breeding ground for vermin and bugs and any human or animal could become seriously ill after coming in contact with decomposing waste. Land-fill sites are also problematic as they are difficult to maintain and need to be specially designed facilities having closely controlled access and operational practices. Shortage of land and underground pollution are also major issues. Risks may also be greater from composting because human exposure to toxic substances are greater through food chain pathways than through inhalation pathways.