|

Photo by Ron Pozzer
The
following article is reprinted courtesy of the Hamilton Spectator,
McMaster University’s partner in the Science in the City
Lecture Series.
Cleaner air is up to us,
says watchdog
Eric McGuinness
The Hamilton Spectator
Cleaning up Hamilton's air is no longer a job for heavy industry.
Clean Air Hamilton says it's you and me with our SUVs, suburban
homes and under-used public transit that is now causing the
problem.
Brian McCarry, chair of the city-sponsored,
non-profit, volunteer group, says local industry has made big
gains and can still do more. But future improvements in air
quality will depend largely on decisions we make about how we
live.
"The choices you make net a real impact," he told
councillors yesterday, suggesting the city do its part by buying
more gas-electric hybrid vehicles, "greening" its
fleet and insisting on more compact urban development.
McCarry, a chemistry professor who holds the Stephen A. Jarislowsky
chair in environment and health at McMaster University, says
industry has to do better, but cleaner air is becoming more
a lifestyle issue, a societal issue, in which sales of big sport-utility
vehicles offset other accomplishments.
Presenting Clean Air Hamilton's 2003-04 progress report, he
said local air quality improved dramatically from 1970 to 1990,
but the present trend line is flat. Any gains are being offset
by increasing traffic and by more smog-causing ozone blown in
from the U.S.
|
 |
|
 |
|
|
|
Councillor Terry Whitehead agreed the city has to lead
by example. He and Councillor Brian McHattie also asked
Mayor Larry Di Ianni to write to U.S. cities to remind
them our health is being hurt by their pollution.
The new report says the level of total suspended particles
(TSP) in city air (dust up to the diameter of a human
hair) has been relatively stable since 1993, but that's
a worry because Hamilton has the highest level in Ontario
of the tiniest particles, or PM-2.5, those most strongly
linked to respiratory and cardiovascular illness.
Levels of sulphur dioxide -- produced by burning fuels
-- are lower here than in Sarnia, Sudbury and Toronto,
thanks to big reductions made by steel mills in the
1970s and 1980s.
Nitrogen dioxide, blamed for a significant share of
the health effects of air pollution, is highest in Toronto,
followed by Hamilton. It's produced by burning fuels
such as diesel oil, coal, wood, oil and natural gas.
Transportation is the leading source in Hamilton, followed
by industry. Ground-level ozone appear to be increasing
slowly.
emcguinness@thespec.com
905-526-4650
Brian McCarry's
Science in the City lecture on Tuesday April 12 is free
of charge and open to the public.
To register for a spot, call
905-525-9140, ext. 24934, or send an e-mail to sciencecity@mcmaster.ca.
Doors open at 6:30 p.m. and
the talk begins at 7 p.m.

|
|
|