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A Sample of water is taken from the west-branch of Don River yesterday by Mayor William Dennison, to be sent to a laboratory for a pollution test. May(...)
A Sample of water is taken from the west-branch of Don River yesterday by Mayor William Dennison, to be sent to a laboratory for a pollution test. May(...)

A Sample of water is taken from the west-branch of Don River yesterday by Mayor William Dennison, to be sent to a laboratory for a pollution test. May(...)

Date5/14/1971
Names
(photographer)
FormatPicture
Notes
Original Toronto Star caption: A Sample of water is taken from the west-branch of Don River yesterday by Mayor William Dennison; to be sent to a laboratory for a pollution test. Mayor had earlier said he noticed the river water changed color at certain hours; indicating deliberate polluting. A testing engineer suggested it was an optical illusion.
Subject
    GeographyCity, town, townshipToronto
    GeographyProvince stateOntario
    GeographyCountryCanada
    Medium
    Photographs
    Language
      ProvenanceFrom the Toronto Star Archives
      CollectionToronto Star Photograph Archive
      Usage Rights Copyright (Learn More)
      Copyright HolderToronto Star (Firm)
      Object NumberTSPA_0011010F
      Lab technicians Keith Austen (foreground) and Harry Alkema test Lake Ontario water samples for nutrients aboard the motor vessel Martin Karlsen, a floating pollution research laboratory
      Lab technicians Keith Austen (foreground) and Harry Alkema test Lake Ontario water samples for nutrients aboard the motor vessel Martin Karlsen, a floating pollution research laboratory
      Olsen, Bob, 1931-2022
      4/5/1971
      A point about pollution is made by Mayor William Dennison to 30 Grade 7 students from St
      A point about pollution is made by Mayor William Dennison to 30 Grade 7 students from St
      Dennison, William
      6/1/1970
      In Laboratories of the health protection branch of the Department of Health and Welfare, Leonard Rose runs a test on vitamin A. Nutritionists say that(...)
      In Laboratories of the health protection branch of the Department of Health and Welfare, Leonard Rose runs a test on vitamin A. Nutritionists say that(...)
      Darrell, Dick
      8/22/1972
      A yell comes from Sandy DiStasi, 4, as laboratory assistant Dawn Stocco takes a blood sample from his finger at Sault Ste. Marie community health cent(...)
      A yell comes from Sandy DiStasi, 4, as laboratory assistant Dawn Stocco takes a blood sample from his finger at Sault Ste. Marie community health cent(...)
      Goode, Jeff
      1/29/1973
      Richard Hyatt: Former volunteer donated 300 hours of his time to write a program linking Central Hospital's mainframe computer system to the laboratory's new Beckman sample analyzer
      Richard Hyatt: Former volunteer donated 300 hours of his time to write a program linking Central Hospital's mainframe computer system to the laboratory's new Beckman sample analyzer
      Rankin, Jim
      8/11/1992
      Mayor tootles for St. Pat. It was St. Patrick's Day and Mayor William Dennison got his Irish up enough to don a shamrock-green hat and trill an Irish (...)
      Mayor tootles for St. Pat. It was St. Patrick's Day and Mayor William Dennison got his Irish up enough to don a shamrock-green hat and trill an Irish (...)
      Dennison, William
      3/17/1970
      Mayor tootles a flute for St.Pat. It's St. Patrick's Day and Mayor William Dennison got up his Irish enough to don a shamrock-green hat and trill an I(...)
      Mayor tootles a flute for St.Pat. It's St. Patrick's Day and Mayor William Dennison got up his Irish enough to don a shamrock-green hat and trill an I(...)
      Dennison, William
      3/17/1970
      Flowers for a foe. They may be arch political foes, but mayoralty hopeful Margaret Campbell is all smiles as Mayor William Dennison pins on a corsage (...)
      Flowers for a foe. They may be arch political foes, but mayoralty hopeful Margaret Campbell is all smiles as Mayor William Dennison pins on a corsage (...)
      Dennison, William
      10/24/1969
      At the end of a rough day on the expropriation front, Mayor William Dennison faced Ward Two ratepayers-augmented by Don Mount residents fighting expro(...)
      At the end of a rough day on the expropriation front, Mayor William Dennison faced Ward Two ratepayers-augmented by Don Mount residents fighting expro(...)
      Lennon, Frank
      9/12/1967
      Ice-choked credit river overflowed its banks at Glen Williams yesterday and sent a wave of gigantic ice-floes, logs and other debris racing through a (...)
      Ice-choked credit river overflowed its banks at Glen Williams yesterday and sent a wave of gigantic ice-floes, logs and other debris racing through a (...)
      Canada Pictures
      3/8/1946
      Ex-mayor visits city hall. Retired ex-mayor William Dennison, 70, visited City Hall yesterday, was welcomed by Metro Chairman Paul Godfrey, but missed(...)
      Ex-mayor visits city hall. Retired ex-mayor William Dennison, 70, visited City Hall yesterday, was welcomed by Metro Chairman Paul Godfrey, but missed(...)
      Dennison, William
      10/7/1975
      Miss Canada meets the Mayor, Wearing a mini-skirt, this year's Miss Canada, Carol Commisso, 18, stands beside Toronto Mayor William Dennison at City Hall yesterday
      Miss Canada meets the Mayor, Wearing a mini-skirt, this year's Miss Canada, Carol Commisso, 18, stands beside Toronto Mayor William Dennison at City Hall yesterday
      Geo, Mario
      11/12/1970