Use of Al for domestic purpose is reduced now. Why ?

Explanation

### Step-by-Step Solution:

1. **Introduction to Aluminium**: Aluminium is a widely used metal in various domestic applications, such as cookware, packaging, and construction materials.

2. **Historical Use**: In the past, aluminium was favored for its lightweight, durability, and resistance to corrosion, making it an ideal choice for many household items.

3. **Health Concerns**: Recent studies have raised concerns about the health effects of aluminium exposure. Specifically, aluminium ions (Al³⁺) can be biologically reactive and may pose health risks.

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