Consider the following statements : 1. Coal ash contains arsenic, lead and mercury. 2. Coal-fired power plants release sulphur dioxide and oxides of nitrogen into the environment. 3. High ash content is observed in Indian coal. Which of the statements giv

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Q: (IAS/2020)
Consider the following statements :
1. Coal ash contains arsenic, lead and mercury.
2. Coal-fired power plants release sulphur dioxide and oxides of nitrogen into the environment.
3. High ash content is observed in Indian coal.

Which of the statements given above is/are correct ?

question_subject: 

Ecology

question_exam: 

IAS

stats: 

0,197,74,18,51,5,197

keywords: 

{'coal ash': [0, 0, 0, 1], 'high ash content': [0, 0, 0, 2], 'coal': [0, 1, 2, 0], 'indian coal': [0, 0, 0, 1], 'power plants release sulphur dioxide': [0, 0, 0, 1], 'mercury': [0, 0, 2, 2], 'oxides': [0, 0, 3, 11], 'nitrogen': [1, 1, 0, 2], 'environment': [2, 0, 0, 3]}

All the statements given in the question are correct.

Coal ash is a waste product generated from burning coal in power plants. It contains toxic metals like arsenic, lead, and mercury, which can cause serious health problems when they leach into groundwater or contaminate soil.

Coal-fired power plants are a significant source of air pollution, releasing harmful pollutants like sulphur dioxide and oxides of nitrogen into the environment. These pollutants can lead to respiratory problems, acid rain, and other environmental issues.

Indian coal has a high ash content, typically ranging from 35-45%, which makes it difficult to burn and increases the amount of waste generated. This is one of the reasons why Indian power plants have lower efficiency and emit more pollutants compared to their global counterparts.