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We have found 3,648 datasets for the keyword "pollution des eaux souterraines". You can continue exploring the search results in the list below.
Datasets: 104,590
Contributors: 42
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3,648 Datasets, Page 1 of 365
Chemical Expense Index 2001
The data represents the relative expense of farm chemicals (herbicides, insecticides and fungicides) in the agricultural area of Alberta. It is an estimate of the degree to which crop production agriculture may contribute to surface or groundwater contamination.Agriculture production that makes greater use of herbicides, insecticides and pesticides in generally considered more intensive. Presenting the relative farm chemical expenses by SLC polygons reveals where the most intensive agricultural production in the province occurs. Chemical use is part of an equation to determine a measure of surface water quality risk. If an area is known to have certain risk factors that would affect not only surface, but groundwater quality as well, a higher chemical expense index ranking in that same area may be of concern. Where risks of surface or groundwater contamination exist, environmental farm planning can help to minimize them.
Groundwater Flow, Groundwater Geoscience Program
Groundwater flow is the movement of water in an aquifer or hydrogeological unit. The dataset shows groundwater flow rate and direction in the hydrogeological unit. Groundwater flow is establish from piezometric surface map. The method used to create the dataset is described in the metadata associated with the dataset. The dataset represents a description of the flow, including rate in m/d, direction, date and source. Typically, the data provided will not be in the form of a shapefile with linked properties but in the form of an image that sketches the groundwater flow. The image could also represent a cross section of the hydrogeologic units showing the regional trends of the groundwater flow.
Monitoring of pesticides in groundwater
This thematic layer shows the location of the wells sampled for pesticides in the context of various studies carried out near certain target crop environments between 1999 and 2024. The data comes from an extraction from the BQMA and, when a report is available on the Department's website, the reader can access it from a link in the information window. Private well sampling stations are grouped by watershed in order to comply with sections 53 and 54 of the Act on access to documents held by public bodies and on the protection of personal information.**This third party metadata element was translated using an automated translation tool (Amazon Translate).**
Provincial Groundwater Monitoring Network
The Provincial Groundwater Monitoring Network (PGMN) datasets report on ambient (baseline) groundwater level and chemistry conditions. [Groundwater monitoring map](https://ontario.ca/environment-and-energy/map-provincial- groundwater-monitoring-network)
Groundwater-Surface Water Model: Carcajou Watershed
In permafrost dominated regions, a gap persists in our understanding of water resources, the influence of groundwater, and the impact of climate change at the regional scale. Regional scale modelling can help to advance the understanding of these impacts by integrating with regional climate models. For regional modelling to be tenable, ongoing development of modelling methods and conceptualizations is required. By developing a fully integrated numerical groundwater-surface water climate model using HydroGeoSphere (HGS) (Aquanty 2021) for a gauged basin within the discontinuous permafrost zone, this dataset allows the verification of existing numerical methods and the testing of various conceptualizations of integrated groundwater-surface water flow in permafrost regions at the regional scale. This work informs future modelling and forecasting of regional water resources in permafrost regimes.
[ARCHIVED] Nova Scotia Groundwater Observation Well Temperature Data
[ARCHIVED] Recommendation is to discontinue the “Nova Scotia Groundwater Observation Well Temperature Data”. This is for scientific / technical reasons. The data was never designed to be collected as a dataset on its own, but is used by sensors to create a correction facter for other data (groundwater levels). Developments in academic research show that the type of water wells we monitor for groundwater levels do not have the correct design for measuring temperature, with issues that include the potential within wells for thermal convection cells that cause groundwater temperature readings to fluctuate inconsistently. Groundwater temperatures have been recorded from the NS Groundwater Observation Well monitoring network since 2003. This temperature data is presented as daily averages and may be influenced by a number of variable factors including air temperature, well construction, depth, geology and groundwater conditions.
Agri-Environmental Indicator – Risk of Water Contamination by Pesticides
The Agri-Environmental Indicator Risk of Water Contamination by Pesticides dataset reports the annual and semi-decadal status of pesticide transport to surface water, the concentration of pesticide in ground water, and the risk of water contamination by pesticide. Products in this data series present results for predefined areas as defined by the Soil Landscapes of Canada (SLC v.3.2) data series, uniquely identified by SOIL_LANDSCAPE_ID values.
Ecological Catalogue (formerly AquaCat)
A compendium of reports that provide information about aquatic and terrestrial animals and plants, soils, surface water, groundwater and their accompanying data files and maps
Ground Water Quality Risk
This map displays an assessment of groundwater quality risk for the agricultural area of Alberta. Agricultural activities that may have an impact on groundwater quality include livestock, crop production and agrochemical use. These activities along with the physical characteristics represented by aquifer vulnerability and available moisture were combined to produce this map. The classes shown on the map were ranked from 0 (lowest risk) to 1 (highest risk). This resource was created in 2005 using ArcGIS.
Naquadat Ground Water Quality Stations
Water wells where ground water quality samples were collected by the Naquadat Program between 1954 and 1980
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