Pollution is the introduction of harmful materials into the environment, both from natural sources like volcanic ash as well as human sources such as trash and factory runoff. The document discusses several types of pollution that are problems in Hong Kong, including water pollution which exposes people to hazardous chemicals and disease-causing organisms, air pollution which increases health risks, noise pollution from construction and transportation, and land pollution. Protecting the environment from various forms of pollution is important for public health and safety.

1. S1 website sharing
Network NAME: Pollution
1D 21 Ng LOK YIU

2. Website name: National Geographic (Education):
Pollution

Website:http://www.nationalgeographic.org/encyclop
edia/pollution/

3. Why do I want to share this topic?
Because:
I. Hong Kong now has a lot of pollution. For example :
Water Pollution, Air Pollution, Land Pollution, Noise
Pollution, Light Pollution…… II. The pollution
in Hong Kong is also becoming more and more
serious. Everyone should
protect the earth.

4. Content of introduction
Pollution is the introduction of harmful materials into
the environment. Pollutants can be natural, such as
volcanic ash. They can also be created by human
activity, such as trash or runoff produced by
factories.

5. Noise Pollution
Noise pollution is the constant presence of
loud, disruptive noises in an area. Usually,
noise pollution is caused by construction or
nearby transportation facilities, such as
airports.

6. Water Pollution
Water pollution is unsafe for drinking and swimming. Some
people who drink polluted water are exposed to hazardous
chemicals that may make them sick years later. Others consume
bacteria and other tiny aquatic organisms that cause disease.
The United Nations estimates that 4,000 children die every day
from drinking dirty water.

7. Air Pollution
Air pollution can be dangerous, even if the pollutants
are invisible. It can make people’s eyes burn and
make them have difficulty breathing. It can also
increase the risk of lung cancer.

8. This is the end of my sharing ,thank you.