In which year Air (Prevention and control of Pollution ) Act was amended to include noise as an air pollutant ?

Options

A. 1972
B. 1981
C. 1987
D. 1990

Explanation

To determine the year in which the Air (Prevention and Control of Pollution) Act was amended to include noise as an air pollutant, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Act**: The Air (Prevention and Control of Pollution) Act was originally enacted to address air pollution in India.

2. **Identify the Original Year**: The original enactment of the Act took place in **1981**.

3. **Look for Amendments**: Amendments to the Act are made to update or add provisions as necessary.

4. **Focus on Noise Pollution**: The specific amendment we are interested in is the one that includes noise as an air pollutant.

5. **Determine the Amendment Year**: The Act was amended in **1987** to include noise as an air pollutant.

6. **Select the Correct Option**: From the options provided:
- A) 1972
- B) 1981
- C) 1987
- D) 1990

The correct answer is **C) 1987**.

### Final Answer:
The Air (Prevention and Control of Pollution) Act was amended to include noise as an air pollutant in **1987**.

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