| It also means the correct disposal of waste, particularly environmentally harmful white goods, such as fridges and cookers. |
| Drug addicts are being sold impure substances which are far more harmful than the real thing. |
| Potentially harmful leaks from waste pipes can also be located, enabling repairs to be carried out quickly. |
| The amount of nitrogen in the atmosphere has the ideal ratio to balance the harmful and burning effects of oxygen. |
| Since babies spend so much time on the floor, avoid commercial carpet cleaners that may use harmful chemicals. |
| Any form of exercise is harmful in excess, but aerobic activity has known cardiovascular benefits. |
