Consider the following statements regarding arsenic contamination:

1. Arsenic is an element naturally found in the Earth's crust that can contaminate water, soil, and food and is highly toxic in its inorganic form.

2. People are exposed to inorganic arsenic through contaminated water, food, and industrial processes.

3. The World Health Organization (WHO) permits arsenic levels of up to 50 µg/L in drinking water to ensure safety.

Which of the statements given above is/are correct?