Skip to main content
Digital Archive Ontario Homepage

Advanced Search Objects: results

Close
Refine Results
Format
Date
to
Names
Subject
Collection
Language
Building, monument or park
City, town or township
Neighbourhood
Sort:
/ 9
Advanced Search Filters
Clear
172 for
  • Subject: Pollution
Zebra mussels: Reader thinks he's found parallel between the NDP's growth of power in Ontario and spread of zebra mussels in the Great Lakes
Zebra mussels: Reader thinks he's found parallel between the NDP's growth of power in Ontario and spread of zebra mussels in the Great Lakes
4/30/1990
Little pest: Zebra mussels like this one may be facing a hopeless future in our lakes
Little pest: Zebra mussels like this one may be facing a hopeless future in our lakes
4/30/1990
Our cold summer may have stopped the dreaded bivalves overrunning cottage country, biologists say, but the invasion will come eventually - perhaps spearheaded by a bigger, hardier relative
Our cold summer may have stopped the dreaded bivalves overrunning cottage country, biologists say, but the invasion will come eventually - perhaps spearheaded by a bigger, hardier relative
4/30/1990
Monica Campbell, Pollution Probe
Monica Campbell, Pollution Probe
3/2/1983
Letter from R.E. Horne to His Worship the Mayor and the Corporation of the City of Toronto, 26 June 1841, pp. 1-2
Letter from R.E. Horne to His Worship the Mayor and the Corporation of the City of Toronto, 26 June 1841, pp. 1-2
1841-06-26
It was a good day for ducks and cyclists, The weather is damp but not the spirits of these two cyclists pedalling around Nathan Phillips Square at Cit(...)
It was a good day for ducks and cyclists, The weather is damp but not the spirits of these two cyclists pedalling around Nathan Phillips Square at Cit(...)
10/12/1970
Dead end for 'leave your car home week', Despite the fact that Toronto's officially-proclaimed Leave Your Car at Home Week got left at the starting ga(...)
Dead end for 'leave your car home week', Despite the fact that Toronto's officially-proclaimed Leave Your Car at Home Week got left at the starting ga(...)
7/13/1970
A Career civil servant, Douglas Walker is an enforcement officer with Metro's air pollution control division
A Career civil servant, Douglas Walker is an enforcement officer with Metro's air pollution control division
1/13/1965
'Leave car at home' aftermath, After they left their cars at home in a last-ditch effort to give some meaning to Toronto's officially-proclaimed Leave(...)
'Leave car at home' aftermath, After they left their cars at home in a last-ditch effort to give some meaning to Toronto's officially-proclaimed Leave(...)
7/13/1970
Six tanks of natural gas power car, Cylinders in trunk hold 500 cubic feet compressed gas
Six tanks of natural gas power car, Cylinders in trunk hold 500 cubic feet compressed gas
8/12/1970
Doug Ettinger: Driver says some Nacan wastes he dumped in Quebec were like a white glue
Doug Ettinger: Driver says some Nacan wastes he dumped in Quebec were like a white glue
11/4/1980
Pollution-free car at U of T, University of Toronto engineering students show the space frame for the all-electric, pollution-free urban vehicle they (...)
Pollution-free car at U of T, University of Toronto engineering students show the space frame for the all-electric, pollution-free urban vehicle they (...)
5/17/1972
Model of smokeless car that they will enter in the 4,500-mile Boston-to-Pasadena Clean Air Car Race is displayed by transportation designer Ken Ball ((...)
Model of smokeless car that they will enter in the 4,500-mile Boston-to-Pasadena Clean Air Car Race is displayed by transportation designer Ken Ball ((...)
5/14/1970
Controlling car pollution
Controlling car pollution
10/29/1989
Trunk-mounted propane tanks in Gordon Champion's car produces a dual-fuel system-propane and gasoline
Trunk-mounted propane tanks in Gordon Champion's car produces a dual-fuel system-propane and gasoline
3/10/1970
For protection: Carl Macfarlane, a propane pump attendant at a Canadian Tire station, wears a mask on windy days for protection from recycling plant's sawdust
For protection: Carl Macfarlane, a propane pump attendant at a Canadian Tire station, wears a mask on windy days for protection from recycling plant's sawdust
8/13/1990
Spare the air: Warnings about Toronto's air quality weren't enough to keep these cars off the Don Valley Parkway last week
Spare the air: Warnings about Toronto's air quality weren't enough to keep these cars off the Don Valley Parkway last week
6/25/1998
Clearing the air
Clearing the air
2/24/1970
A dirty brown cloud of pollutants descends on downtown Toronto today, and the environment ministry says it will be with us for the rest of the week. T(...)
A dirty brown cloud of pollutants descends on downtown Toronto today, and the environment ministry says it will be with us for the rest of the week. T(...)
7/6/1988
Clearing the air, Esso Petroleum Canada driver Yvon Bissonette checks the controls of a vapor recovery system, just launched to reduce air pollution b(...)
Clearing the air, Esso Petroleum Canada driver Yvon Bissonette checks the controls of a vapor recovery system, just launched to reduce air pollution b(...)
11/28/1991
/ 9