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To assess the toxicity of winter-time atmospheric deposition in the oil sands mining area of Northern Alberta, embryo-larval fathead minnow (Pimephales promelas) were exposed to snowmelt samples. Snow was collected in 2011–2014 near (< 7 km) oil sands open pit mining operations in the Athabasca River watershed and at sites far from (> 25 km) oil sands mining. Snow was shipped frozen back to the laboratory, melted, and amended with essential ions prior to testing. Fertilized fathead minnow eggs were exposed (< 24 h post-fertilization to 7–16 days post-hatch) to a range of 25%–100% snowmelt.

From March 31 to July 15, 2016, the Government of Canada conducted public consultations in support of developing Canada’s Third Biennial Plan to the Open Government Partnership (2016-2018). The datasets contain the comments, questions and ideas received, as well as the coding added to conduct the qualitative analysis. Private personal identifiers have been removed from the data. There are two sets of data; one entitled Compilation and, the other Individual Comments, as well as a supporting document entitled release notes that describes the content in detail.

Contained within the 2nd Edition (1915) of the Atlas of Canada is a map that shows the areas that rail companies operated in Ontario and Quebec, circa 1913. The four railway lines displayed are the Canadian Pacific, Canadian Northern, Grand Trunk and National Transcontinental, and the territory tributary to each line is shown in colours. The railway lines are indicated and the territory tributary to each line is shown in colours. The map includes statistics of the mileage, rolling stock, receipts, cost of construction and the cost of maintenance of the various railway lines for 1912 to 1913.

This data provides the integrated cadastral framework for the specified Canada Land. The cadastral framework consists of active and superseded cadastral parcel, roads, easements, administrative areas, active lines, points and annotations. The cadastral lines form the boundaries of the parcels. COGO attributes are associated to the lines and depict the adjusted framework of the cadastral fabric.

This data provides the integrated cadastral framework for the specified Canada Land. The cadastral framework consists of active and superseded cadastral parcel, roads, easements, administrative areas, active lines, points and annotations. The cadastral lines form the boundaries of the parcels. COGO attributes are associated to the lines and depict the adjusted framework of the cadastral fabric.

This table is part of a series of tables that present a portrait of Canada based on the various census topics. The tables range in complexity and levels of geography. Content varies from a simple overview of the country to complex cross-tabulations; the tables may also cover several censuses.

This is a spatial layer showing Ministry of Forests Map Notation Lines. These are the linear spatial representation for a notation on the Forest Atlas which records the area of interest of other government agencies and individuals

COVID-19 is a new disease and we are still learning how it affects pregnant women.

The boundaries of the map grid are defined by latitude and longitude. Each window is 15 minutes of latitude (approximately 28 km) by 30 minutes of longitude (approximately 38 km).

The Yukon Territory is underlain by a great variety of rock types ranging in age from Early Proterozoic to Recent and representing diverse environments including epicratonic basins, subsiding shelves, foreland basins, island arcs and deep ocean basins. Episodes of compressional and extensional deformation, transcurrent faulting, metamorphism and plutonism further complicate the map pattern. This complex geological record has been described in terms of the interactions of several terranes (large parts of the earth's crust which preserve a common geological record) with each other and with the margin of ancestral North America.