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PT Perusahaan Listrik Negara (Persero) (lit. ' State Electricity Company ' , abbreviated as PLN ) is an Indonesian government-owned corporation which has a monopoly on electric power distribution in Indonesia and generates the majority of the country's electrical power, producing 176.4 TWh in 2015.
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Contamination control is the generic term for all activities aiming to control the existence, growth and proliferation of contamination in certain areas. Contamination control may refer to the atmosphere as well as to surfaces, to particulate matter as well as to microbes and to contamination prevention as well as to decontamination .
In Indonesia, state-owned enterprises (Indonesian: Badan Usaha Milik Negara (BUMN)) play an important role in the national economy. Their roles includes contributor for national economy growth , providing goods or services which are not covered by private company , employment provider, providing support guidance to small and medium businesses ...
Average global distribution of particulate matter (PM2.5) concentrations (2001-2006). Atmospheric particulate matter, also known as particulate matter, or PM, describes solids and/or liquid particles suspended in a gas, most commonly the Earth's atmosphere. [1]
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 agency, which managed the electricity and gas, then dissolved on 1 January 1965. At the same time, two state-owned companies were established: Perusahaan Listrik Negara (PLN) to manage the electricity sector and Perusahaan Gas Negara (PGN) to manage the natural gas sector. PGN was officially established on 13 May 1965.
Soil contamination, soil pollution, or land pollution as a part of land degradation is caused by the presence of xenobiotic (human-made) chemicals or other alteration in the natural soil environment. It is typically caused by industrial activity, agricultural chemicals or improper disposal of waste .