PM2.5

PM10

NO₂

SO₂

O₃

CO

PM2.5

1

0.712^**

0.617^**

0.467^**

0.002

0.861^**

PM10

1

0.571^**

0.477^**

0.049

0.565^**

NO₂

1

0.560^**

−0.328^**

0.684^**

SO₂

1

−0.164^**

0.583^**

O₃

1

−0.093^*

CO

1