These impurities and requirements in mines environment is discussed below: 1. Oxygen (O2): Oxygen is a colorless, odorless, and tasteless gas with a specific gravity of 1.1047 (heavier than air = 1), a typical miner at rest consumes about 0.005 litres of oxygen every second due to respiration. Similarly, a miner exposed to moderate and extreme workloads consumes 0.03 litres [...]
In this article we will discuss about:- 1. Introduction to Persistent Organic Pollutants (POPs) 2. Global Action against POPs 3. Sources 4. Personal Action on POPs to Reduce Risk 5. Factsheet 6. POPs Problem in India 7. Collective Action 8. "The Dirty Dozen" POPs 9. Additional POPs 10. Notes 11. Factsheet. Contents: Introduction to Persistent Organic Pollutants (POPs) Global Action [...]
In order for a chemical to become hazardous to a person's health, it must first contact or enter the body and the chemical must have some biological effect on the body. There are five major routes of entry of environment chemicals in our body: (i) Inhalation (breathing) (ii) Skin contact (dermal route) (iii) Digestive system (ingestion or eating) (iv) Injestion [...]