❓ Hon Jim Scott inquired about air quality monitoring in and around the Northbridge Tunnel. The government responded that regular monitoring is not currently conducted as previous monitoring showed acceptable air quality levels.
AnsweredQoN 410Legislative Council
QuestionView source ↗
(1) Does the Government carry out regular monitoring of air quality in the Northbridge Tunnel and in adjacent areas?
(2) If yes, where are the results published?
(3) If not, why not?
(4) Will the Minister table the monitoring results for the last two years?
(2) If yes, where are the results published?
(3) If not, why not?
(4) Will the Minister table the monitoring results for the last two years?
AnswerView source ↗
Answered
20 March 2003
Responded by
Minister for Housing and Works representing the Minister for the Environment and Heritage
Response time
15 days
(2) There are no results published. (3) In relation to air quality outside the tunnel, BCJV, the tunnel builder and contract operator undertook monitoring during 2000 and 2001 as part of its contractual arrangements with Main Roads WA. The reports on this monitoring indicated that for a two month period immediately prior to the tunnel opening (March and April 2000) and for the periods May to June 2000 and September 2000 to March 2001, the concentrations of oxides of nitrogen, carbon monoxide, ozone and fine particles were well below the National Environmental Protection Measure standards, except for one day on which high particle levels were caused by a regional dust storm. The Department of Environmental Protection agreed with BCJV that continued regular monitoring outside the tunnel was not warranted. (4) Not applicable.
(3) In relation to air quality outside the tunnel, BCJV, the tunnel builder and contract operator undertook monitoring during 2000 and 2001 as part of its contractual arrangements with Main Roads WA. The reports on this monitoring indicated that for a two month period immediately prior to the tunnel opening (March and April 2000) and for the periods May to June 2000 and September 2000 to March 2001, the concentrations of oxides of nitrogen, carbon monoxide, ozone and fine particles were well below the National Environmental Protection Measure standards, except for one day on which high particle levels were caused by a regional dust storm. The Department of Environmental Protection agreed with BCJV that continued regular monitoring outside the tunnel was not warranted. (4) Not applicable.
(4) Not applicable.
(3) In relation to air quality outside the tunnel, BCJV, the tunnel builder and contract operator undertook monitoring during 2000 and 2001 as part of its contractual arrangements with Main Roads WA. The reports on this monitoring indicated that for a two month period immediately prior to the tunnel opening (March and April 2000) and for the periods May to June 2000 and September 2000 to March 2001, the concentrations of oxides of nitrogen, carbon monoxide, ozone and fine particles were well below the National Environmental Protection Measure standards, except for one day on which high particle levels were caused by a regional dust storm. The Department of Environmental Protection agreed with BCJV that continued regular monitoring outside the tunnel was not warranted. (4) Not applicable.
(4) Not applicable.
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