Île-des-Soeurs Air Quality Report - April 2019

Île-des-Soeurs Particle Pollution Report for April 2019

Polluant

PMTOT

PM2.5

Time

1h

8h

24h

3h

24h

Threshold

300 µg/m3

190 µg/m3

120 µg/m3

35 µg/m3

30 µg/m3

01-Apr

204

170

85

9

5

02-Apr

238

152

96

7

5

03-Apr

548*

234*

137*

9

5

04-Apr

371*

236*

120*

7

4

05-Apr

145

75

50

5

2

06-Apr

119

72

40

11

6

07-Apr

345*

177

93

18

11

08-Apr

20

143

10

7

2

09-Apr

21

16

13

9

4

10-Apr

134

86

43

7

5

11-Apr

233

176

132*

8

5

12-Apr

187

141

81

9

5

13-Apr

213

170

83

7

4

14-Apr

154

84

39

3

1

15-Apr

17

13

11

4

2

16-Apr

156

116

79

8

4

17-Apr

502*

262*

177*

21

9

18-Apr

321*

176

107

7

4

19-Apr

56

34

18

10

3

20-Apr

16

12

8

1

0

21-Apr

107

74

48

10

4

22-Apr

233

141

102

8

4

23-Apr

226

125

71

6

1

24-Apr

71

42

24

3

2

25-Apr

323*

192*

113

13

7

26-Apr

51

129

21

6

2

27-Apr

77

38

19

5

1

28-Apr

60

46

31

5

3

29-Apr

260

159

100

6

3

30-Apr

329*

188

113

8

5

Asterix (*): Indicates that the reading on this day exceeded the stated threshold.

Note: The results for April 2019 show that on 8 days the level of particle pollution exceeded the acceptable levels established by the Government of Canada. It has been confirmed that this was not solely as a result of construction activities for the Samuel De Champlain Bridge. Several exceedances of PMtot measured at the Île-des-Soeurs station are due to the close proximity of the air quality monitoring station to the access road of Highway 10 from the roundabout of the Pointe-Nord road, where particles accumulated during the winter are put in suspension by vehicles as they pass by. An unpaved parking lot located in close proximity to the air quality monitoring station also contributed to particle pollution.

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