Water quality refers to the chemical, physical, and biological characteristics of water based on the standards of its usage. It is most frequently used by reference to a set of standards against which compliance, generally achieved through treatment of the water, can be assessed. The most common standards used to monitor and assess water quality convey the health of ecosystems, safety of human contact, extent of water pollution and condition of drinking water. Water quality has a significant impact on water supply and oftentimes determines supply options.
Water pollution is the contamination of water bodies, usually as a result of human activities, so that it negatively affects its uses. Water bodies include lakes, rivers, oceans, aquifers, reservoirs and groundwater. Water pollution results when contaminants mix with these water bodies. Contaminants can come from one of four main sources: sewage discharges, industrial activities, agricultural activities, and urban runoff including stormwater. Water pollution is either surface water pollution or groundwater pollution. This form of pollution can lead to many problems, such as the degradation of aquatic ecosystems or spreading water-borne diseases when people use polluted water for drinking or irrigation. Another problem is that water pollution reduces the ecosystem services that the water resource would otherwise provide.
The Kawartha Lakes (/kə'wɔrθɐ/) are a chain of lakes in south-central Ontario, Canada that form the upper watershed of the Trent River. The lakes are located on the boundary between the Paleozoic limestone regions of the Golden Horseshoe, and the Precambrian granite Canadian Shield of northern and central Ontario.
The Ministry of Environment is the South Korea branch of government charged with environmental protection. In addition to enforcing regulations and sponsoring ecological research, the Ministry manages the national parks of South Korea. Its headquarters is in Sejong City.
Paudash Lake is a lake in south central Ontario southwest of Bancroft along Highway 28. The lake is located just north of Silent Lake Provincial Park in Haliburton County, 27 km (17 mi) south of the panhandle of Algonquin Provincial Park. The nearest communities to Paudash Lake are the village of Cardiff, close to the lake's Inlet Bay, and the hamlet of Paudash to the northeast of Lower Paudash Lake. Actually two lakes, 'Paudash' and 'Lower Paudash', the lakes are located on the Crowe River, near its head waters, which flows into the Trent River at Crowe Bay north of Campbellford.
Jack Lake is a lake and reservoir in the municipalities of Havelock-Belmont-Methuen and North Kawartha, Peterborough County in Central Ontario, Canada, about 100 mi (160 km) directly northeast of Toronto and at the edge of the Canadian Shield in the northeastern portion of the Kawartha lakes region. The lake is in the Great Lakes Basin, and serves as a small headwater pond for the Trent-Severn Waterway. The Dispersed rural community of Jack Lake is on the northwest shore of the lake, reached by Peterborough County Road 52 / Jack Lake Road from the community of Apsley, about 5 kilometres (3.1 mi) to the north on Ontario Highway 28.
Water testing is a broad description for various procedures used to analyze water quality. Millions of water quality tests are carried out daily to fulfill regulatory requirements and to maintain safety.
Deloro is a community in geographic Marmora Township in the Municipality of Marmora and Lake, Hastings County in Central Ontario, Canada. Deloro is about 200 kilometres (120 mi) southwest of Ottawa and 65 kilometres (40 mi) east of Peterborough. The Deloro Mine site sits along the banks of the Moira River, along the east side of the community. During the gold rush days, after striking gold in Eldorado in 1866, prospectors built at least 25 shafts on the area now known as the Deloro Mine Site.
Environmental monitoring describes the processes and activities that need to take place to characterize and monitor the quality of the environment. Environmental monitoring is used in the preparation of environmental impact assessments, as well as in many circumstances in which human activities carry a risk of harmful effects on the natural environment. All monitoring strategies and programs have reasons and justifications which are often designed to establish the current status of an environment or to establish trends in environmental parameters. In all cases, the results of monitoring will be reviewed, analyzed statistically, and published. The design of a monitoring program must therefore have regard to the final use of the data before monitoring starts.
Environmental effects of mining can occur at local, regional, and global scales through direct and indirect mining practices. Mining can cause erosion, sinkholes, loss of biodiversity, or the contamination of soil, groundwater, and surface water by chemicals emitted from mining processes. These processes also affect the atmosphere through carbon emissions which contributes to climate change. Some mining methods may have such significant environmental and public health effects that mining companies in some countries are required to follow strict environmental and rehabilitation codes to ensure that the mined area returns to its original state.
The Kawartha Lakes Railway was a Canadian rail line. It was created in 1996 to assume the operations of the Havelock and Nephton Subdivisions of the Canadian Pacific Railway which serve the Peterborough, Ontario area.
Pollution is an environmental issue in Canada. It has posed health risks to the Canadian population and is an area of concern for Canadian lawmakers. Air, water and soil pollution as well as the associated health effects are prominent points of contention in modern Canadian society.
The Mount Polley mine is a Canadian gold and copper mine located in British Columbia near the towns of Williams Lake, and Likely. It consists of two open-pit sites with an underground mining component and is owned and operated by the Mount Polley Mining Corporation, a wholly owned subsidiary of Imperial Metals. In 2013, the mine produced an output of 38,501,165 pounds (17,463,835 kg) of copper, 45,823 ounces of gold, and 123,999 of silver. The mill commenced operations in 1997 and was closed and placed on care and maintenance in 2019. The company owns 20,113 hectares (201.13 km2) of property near Quesnel Lake and Polley Lake where it has mining leases and operations on 2,007 hectares (20.07 km2) and mineral claims on 18,106 hectares (181.06 km2). Mineral concentrate is delivered by truck to the Port of Vancouver.
The North River is a river in the municipality of Havelock-Belmont-Methuen, Peterborough County in Central Ontario, Canada. It is part of the Great Lakes Basin, and is a right tributary of the Crowe River.
Environmental issues in Toronto encompasses all those concerns and opportunities presented by the environment of Toronto. Many are harmful effects, such as the pollution of air and water, while others are factors influenced by urban infrastructures such as highways and public transportation services. As a result of the city's large population, substantial waste is produced annually.
Water pollution in Canada is generally local and regional in water-rich Canada, and most Canadians have "access to sufficient, affordable, and safe drinking water and adequate sanitation." Water pollution in Canada is caused by municipal sewage, urban runoff, industrial pollution and industrial waste, agricultural pollution, inadequate water infrastructure. This is a long-term threat in Canada due to "population growth, economic development, climate change, and scarce fresh water supplies in certain parts of the country."
Pollution in Korea has become diversified and serious due to rapid industrialization and urbanization since the 1960s. The causes of environmental pollution, both in South and North Korea, can be found in population growth, urban concentration, and industrial structure, similar to the rest of the world.
The successor of multiple historical Canadian mining and energy companies, EWL Management Limited was an Alberta based corporation that owned five decommissioned mines in Ontario, including three former uranium mines.
The Hagersville Tire Fire, sparked on 12 February 1990, was a major tire fire that began at a tire recycling facility near Hagersville, Ontario. The fire started at the Tyre King Tire Recycling facility, a facility already under scrutiny by the Province of Ontario as an environmental hazard at the time. Firefighters from twenty-four different fire departments spent seventeen days fighting the fire, which eventually consumed fourteen million tires and burned the equivalent of eighteen football fields. A major media event at the time, the fire was covered by a wide variety of Canadian and American media operations. The blaze cost $15–25 million dollars for the province to put out, displaced up to 4,000 residents, and produced a significant amount of toxic smoke and ash. Investigators later determined that the fire was likely caused by five arsonists, one of whom pleaded guilty and testified against the other four, who were charged with mischief and sentenced to prison times between one month and four months. The fire was officially put out on 1 March 1990.
