air pollution: is the presence of substances in the atmosphere that are harmful to the health of humans and other living beings.
land pollution: is the degradation or destruction of the Earth’s surface and soil, directly or indirectly, as a result of human activities.
light pollution: is the presence of anthropogenic and artificial light in the night environment, compromising health, disrupting ecosystems and spoiling aesthetic environments.
noise pollution: noise, such as that from traffic, that upsets people where they live or work and is considered to be unhealthy for them.