Detergents
Submitted by Jo on Mon, 23/07/2007 - 12:03.
The purpose of a detergent is to break down the surface tension of water, allowing other chemicals (like surfactants) to make contact with the substance being cleaned. So if a detergent comes into contact with, say, the mucous membrane in your nose, it does the same job.
Phosphate detergents are commonly used, and lead to problems once they get into the water supply – they promote algae growth, which reduces oxygen levels in water, kills aquatic plants and fish, and disrupts sewage treatment. Look for products free from phosphates, phosphonates and carboxylates.
Soap-based detergents are more eco-friendly.
