3) Noise pollution: Noise pollution is the excessive noise that may disrupt the activity or balance of human or animal life. The main causes of noise pollution are machines, transportation systems, motor vehicles, aircrafts, and trains. In addition to that the other causes of noise pollution are poor urban planning, the indoor noise caused by machines, building activities, music performances, and in some workplaces also.
4) Solid waste: Solid wastes have a lion’s share among total pollution. Mainly it is composed of municipal solid waste (MSW), hazardous waste, plastic waste and E-waste. MSW also called as trash or garbage which is mainly composed of everyday items that are discarded by the public. Again MSW is of two types, biodegradable or recyclable and non biodegradable. The non biodegradable is more harmful in nature as it can’t be degraded. Hazardous wastes always pose a great threat to an environment. Under RCRA in 40 CFR 261, hazardous wastes are classified into 4 categories viz. ignitability, reactivity, corrosivity and toxicity. Plastic wastes always pose a great threat to the environment. Due to its non degradable nature it always tops the chart in pollution. E-Waste otherwise called as electronic waste, waste electrical and electronic equipment. E-Waste comprises of office electronic equipment, television sets and refrigerators,