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2019 Kim Kim River toxic pollution. 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. The illegal dumping released toxic fumes, affecting 6,000 people and hospitalising 2,775.
Water pollution occurs due to the discharge of untreated sewage; the west coast of the Peninsular Malaysia is the most heavily populated area. 40% of the rivers in Malaysia are heavily polluted. The country has 580 cubic km of water, of which 76% is used for farming and 13% is used for industrial activity.
Fish mortality is a parameter used in fisheries population dynamics to account for the loss of fish in a fish stock through death. The mortality can be divided into two types: Natural mortality: the removal of fish from the stock due to causes not associated with fishing. Such causes can include disease, competition, cannibalism, old age ...
Fisheries are affected by climate change in many ways: marine aquatic ecosystems are being affected by rising ocean temperatures, [ 2] ocean acidification [ 3] and ocean deoxygenation, while freshwater ecosystems are being impacted by changes in water temperature, water flow, and fish habitat loss. [ 4] These effects vary in the context of each ...
Deforestation in Malaysia is a major environmental issue in the country. British colonial deforestation efforts began in 1880 and were rapidly driven by commercial rubber and palm oil cultivation. Between 1990 and 2010, Malaysia lost an estimated 8.6% of its forest cover, or around 1,920,000 hectares (4,700,000 acres). [4]
The term fish kill, known also as fish die-off, refers to a localized die-off of fish populations which may also be associated with more generalized mortality of aquatic life. [1][2] The most common cause is reduced oxygen in the water, which in turn may be due to factors such as drought, algae bloom, overpopulation, or a sustained increase in ...
A reliance on surface water leaves Malaysia vulnerable to precipitation changes, however models do not show significant expected changes, and Kelantan and Pahang may see more water than they do at present. [5]: 15 Rainfall is expected to increase, and more so in East Malaysia than Peninsular Malaysia. The precise magnitude of the increase ...
Biodiversity loss happens when plant or animal species disappear completely from Earth (extinction) or when there is a decrease or disappearance of species in a specific area. Biodiversity loss means that there is a reduction in biological diversity in a given area. The decrease can be temporary or permanent.