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Found 10 records similar to Toxicity of the pharmaceuticals finasteride and melengestrol acetate to the freshwater mussels Lampsilis siliquoidea and Lampsilis fasciola

Federal

The toxicity of pharmaceuticals finasteride (FIN) and melengestrol acetate (MGA) was assessed in freshwater mussels, including acute (48 h) aqueous tests with glochidia from Lampsilis siliquoidea, a sub-chronic (14 days) sediment test with gravid Lampsilis fasciola, chronic (28 days) sediment tests with juvenile L. siliquoidea, and in chronic (42 days) sediment tests with the amphipod Hyalella azteca and the mayfly Hexagenia spp. Testing with mussels assessed survival (glochidia, juvenile mussels), burial ability (juvenile mussels), and filtering and luring behaviour, and viability of brooding glochidia (gravid mussels). Testing with amphipods assessed survival, growth, reproduction and sex ratio. Testing with mayflies assessed survival and growth.

Last Updated: Jun. 15, 2022
Date Published: Oct. 18, 2021
Organization: Environment and Climate Change Canada
Formats: HTML CSV
Keywords:  Freshwater mussel (Lampsilis siliquoidea), Amphipod (Hyalella azteca), Freshwater mussel (Lampsilis fasciola), Mayfly (Hexagenia spp.), Sediment, Toxicity, Pharmaceuticals, Finasteride, Melengestrol acetate
Federal

The toxicity and bioconcentration of 3 pharmaceuticals (amitriptyline, iopamidol, and sertraline) were examined using multiple life stages (larval, juvenile, and adult) of the unionid mussel Lampsilis siliquoidea. The endpoints examined varied with life stage but included survival, behavior (algal clearance rate, filtering frequency), and oxidative stress. Glochidia and juveniles were more sensitive than adult mussels. However, the compounds examined were not toxic at concentrations detected in the environment.

Last Updated: Apr. 22, 2022
Date Published: Feb. 4, 2022
Organization: Environment and Climate Change Canada
Formats: HTML CSV
Keywords:  Amitriptyline, Iopamidol, Sertraline, Pharmaceuticals, Bioconcentration, Freshwater mussel, The New Substances Assessment and Control Bureau (NSACB), Aquatic ecosystems, Toxicology
Federal

The toxicity of pharmaceuticals finasteride (FIN) and melengestrol acetate (MGA) was assessed in chronic (42 days) sediment tests with the amphipod Hyalella azteca. Two tests were completed for each compound. Survival, growth, reproduction and sex ratio were assessed at the end of each test.

Last Updated: Jan. 24, 2022
Date Published: Nov. 25, 2021
Organization: Environment and Climate Change Canada
Formats: HTML
Keywords:  amphipod, Hyalella azteca, sediments, toxicity, pharmaceuticals, finasteride, Melengestrol acetate, The New Substances Assessment and Control Bureau (NSACB), Environment
Federal

The toxicity of pharmaceuticals finasteride (FIN) and melengestrol acetate (MGA) was assessed in chronic (42 days) sediment tests with the amphipod Hyalella azteca. Two tests were completed for each compound. Survival, growth, reproduction and sex ratio were assessed at the end of each test.

Last Updated: Jan. 24, 2022
Date Published: Feb. 25, 2021
Organization: Environment and Climate Change Canada
Formats: HTML
Keywords:  Aquatic animals, Arthropods, Bioassay, Toxicology, Biology, Chemicals, Fresh water, Sediment, Toxicity
Federal

Freshwater mussels contribute important ecological functions to aquatic systems. The water filtered by mussel assemblages can improve water quality, and the mixing of sediments by burrowing mussels can improve oxygen content and release nutrients. However, nearly 70 percent of North American freshwater mussel species are listed as either endangered, threatened, or in decline. In Ontario, 28 species are in decline or in need of protection.

Last Updated: Jul. 29, 2021
Date Published: Aug. 8, 2018
Organization: Environment and Climate Change Canada
Formats: CSV HTML
Keywords:  freshwater mussels, glochidea, Lampsilis siliquoidea, Villosa iris, species at risk, pesticides, neonicotinoids, contaminants, viability
Federal

This table contains 76416 series, with data for years 2000 - 2000 (not all combinations necessarily have data for all years). This table contains data described by the following dimensions (Not all combinations are available): Geography (199 items: Canada; Health and Community Services St. John's Region; Newfoundland and Labrador (Peer group H); Newfoundland and Labrador; Health and Community Services Eastern Region; Newfoundland and Labrador (Peer group D) ...) Age group (8 items: Total; 40 years and over; 40 to 44 years; 45 to 64 years; 45 to 54 years ...) Prostate-specific antigen (PSA) test (6 items: Total; prostate-specific antigen test; Prostate-specific antigen test; 1 year to less than 2 years ago; Prostate-specific antigen test; 2 or more years ago; Prostate-specific antigen test; less than one year ago ...) Characteristics (8 items: Number of persons; Low 95% confidence interval; number of persons; High 95% confidence interval; number of persons; Coefficient of variation for number of persons ...).

Last Updated: Oct. 28, 2021
Date Published: May 17, 2010
Organization: Statistics Canada
Formats: XML CSV HTML
Keywords:  health, prevention and detection of disease, table
Federal

This table contains 80 series, with data for years 2001 - 2001 (not all combinations necessarily have data for all years). This table contains data described by the following dimensions (Not all combinations are available): Geography (1 items: Canada ...) Type of barrier to accessing selected diagnostic tests (10 items: Selected diagnostic tests; waited too long for the test; Selected diagnostic tests; service not available when needed; Selected diagnostic tests; waited too long to see physician (in-office wait); Selected diagnostic tests; difficulty getting an appointment ...) Characteristics (8 items: Number of persons; Low 95% confidence interval; number of persons; Coefficient of variation; number of persons; High 95% confidence interval; number of persons ...).

Last Updated: Oct. 28, 2021
Date Published: Dec. 17, 2015
Organization: Statistics Canada
Formats: XML CSV HTML
Keywords:  access to health care, health, health care services, table
Provincial

Get a list of COVID-19 assessment centres. Before you go, you should check if: * The centre is open * They have drive-through or walk-in testing * They will test small children or babies * You need to make an appointment * You need to speak to a staff member about your condition (prescreening) All assessment centres will test you if you would like to be tested. Call the assessment centre or your local public health unit if you have questions. You do not need a health (OHIP) card for a test.

Last Updated: Oct. 13, 2022
Date Published: May 29, 2020
Organization: Government of Ontario
Formats: HTML JSON CSV other
Keywords:  Government and Finance, Health, Coronavirus, Covid, testing, covid-19 testing locations, COVID-19
Federal

Diagnosing and how we test, testing importance and contact tracing, increasing testing supply, test accuracy, testing for travellers, national overview of tests performed, roles and responsibilities, authorized testing devices, testing devices under review, access to and types of testing devices, testing and screening expert advisory panel, indutry advisory roundtable, and rapid tests for workplace screening.

Last Updated: Apr. 30, 2021
Date Published: Apr. 19, 2021
Organization: Public Health Agency of Canada
Formats: HTML
Keywords:  COVID-19, Coronavirus, testing, screening, contact tracing travellers, testing devices
Federal

Borehole seismic field tests were conducted over a sub-economic massive sulphide deposits located in Norman West, Ontario to assess the usefulness of this technique for the exploration of base metal deposits. The field tests were conducted by the Downhole Seismic Imaging (DSI) consortium.

Last Updated: Feb. 22, 2022
Date Published: Jan. 1, 1999
Organization: Natural Resources Canada
Formats: other
Keywords:  earth sciences, geophysics, seismic, sudbury, vertical seismic profile, vsp
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