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The most important law act with regards to air pollution control in Philippines would be the 1999 Philippine Clean Air Act. You will find everything you need there. Check their Government’s website. There’s a printable version online.

Air pollution control techniques are as efficient as they could be given the circumstances of today’s world. It is clear that there are things that are done on order to reduce air pollution, like primary regulations, permissive regulations, increased fuel efficiency and conversion to cleaner fuels.

It depends. Normal plastic bags are recyclable, but grocery plastic bags are not, because they are made from petroleum products, which are not environment friendly.

It shouldn’t take too much for the testing water results to get back at you, but it depends on how many tests they are doing. I would say it should last between one and maximum four days. Some chemical reactions last longer.

Not only does using canvas bags instead of plastic bags to carry your groceries help the environment, it it helps you save up some money. Throwing away a plastic bag is almost like a crime against the environment, because plastic is not biodegradable and it can harm it irremediably.

You need to remove algae from koi ponds quite often, at least once a week. If your koi pond has been invaded by a specific type of algae, you need to do that regularly because otherwise it will cut oxygen resources in the pond, which could lead to the death of the koi fish.