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Water

Month

RSPM (µg/m3)

NOx (µg/m3)

SO2(µg/m3)

2013

2014

2015

2016

2017

2013

2014

2015

2016

2017

2013

2014

2015

2016

2017

January

136

110

115

110

93

28

17

14

14

11

8

6

5

5

6

February

149

97

89

94

100

19

12

14

13

12

7

4

4

5

6

March

124

97

82

94

91

16

13

12

12

11

7

5

4

5

5

April

136

107

90

100

97

23

12

13

12

11

9

5

4

5

5

May

130

108

91

106

89

23

14

13

12

11

9

6

4

5

5

June

96

98

94

104

87

18

12

12

13

11

6

5

4

5

5

July

88

94

86

90

72

16

14