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Various definitions of pollution exist, which may or may not recognize certain types, such as noise pollution or greenhouse gases.The United States Environmental Protection Administration defines pollution as "Any substances in water, soil, or air that degrade the natural quality of the environment, offend the senses of sight, taste, or smell, or cause a health hazard.
Air pollution is the presence of substances in the atmosphere that are harmful to humans and other living beings, or cause damage to the environment. Air pollution can be chemical, physical or biological. [1]
The climate crisis encompasses global warming and climate change, which have resulted from the excessive accumulation of greenhouse gases in the Earth's atmosphere. [8] It leads to rising temperatures, sea-level rise, and extreme weather events such as extreme precipitation, flooding, extreme heat events, severe storms, drought and more. [8]
Within the sciences, the word "contamination" can take on a variety of subtle differences in meaning, whether the contaminant is a solid or a liquid, [3] as well as the variance of environment the contaminant is found to be in. [2] A contaminant may even be more abstract, as in the case of an unwanted energy source that may interfere with a process. [2]
The air quality in Malaysia is reported as the Air Pollution Index (API). Four of the index's pollutant components (i.e., carbon monoxide, ozone, nitrogen dioxide and sulfur dioxide) are reported in ppmv but PM 10 particulate matter is reported in μg/m 3.
The 2019 Kim Kim River toxic pollution is a water pollution incident that occurred on 7 March 2019 caused by illegal chemical waste dumping at the Kim Kim River in Pasir Gudang of Johor in Malaysia.
In 1968 the Vienna Convention on Road Traffic gave one of the first international definitions of a motor vehicle: (o) “Power-driven vehicle” means any self-propelled road vehicle, other than a moped in the territories of Contracting Parties which do not treat mopeds as motorcycles, and other than a rail-borne vehicle;
The Road Transport Department (Malay: Jabatan Pengangkutan Jalan, abbreviated JPJ; Jawi: جابتن ڤڠڠكوتن جالن ), is a government department under the Malaysian Ministry of Transport.