Question

Waste accumulation is the most visible form of pollution, which creates global environmental challenges. State any three such challenges and their probable remedies.

Answer 1

The following are the challenges and their probable remedies:

1. Spoilage of Landscape:
   • Challenge: Uncontrolled accumulation of unsegregated solid waste creates ugly heaps of trash in urban areas. This destroys the aesthetic beauty of the land and turns the area into an offensive, foul-smelling zone.
   • Remedy: Implementing strict source segregation of household waste into organic and inorganic components, alongside regular clearing by municipal authorities, helps restore scenic landscape value.
2. Pollution (Air, Water, and Soil):
   • Challenge: Rainwater percolating through open dumping grounds dissolves toxic chemicals, creating a hazardous liquid called leachate that leaks down to pollute groundwater tables. At the same time, rotting waste releases methane, causing intense air pollution.
   • Remedy: Constructing engineered sanitary landfills lined with thick clay layers and plastic sheets captures toxic leachate and safely prevents it from seeping into subsurface water reservoirs.
3. Health Hazards and Epidemics:
   • Challenge: Open dumps serve as major breeding grounds for pathogen vectors like flies, mosquitoes, and rodents. These vectors directly spread infectious water-borne and vector-borne diseases like cholera, typhoid, and dengue.
   • Remedy: Regular application of chemical vector controls (disinfectant sprays) over waste piles and setting up closed, decentralized compost units helps eliminate insect breeding grounds.