SO₂

NO₂

PM10

CO

O₃

PM2.5

SO₂

1

0.291

0.597

0.656

0.281

0.475

NO₂

0.291

1

0.676

0.574

0.529

0.698

PM10

0.597

0.676

1

0.754

0.529

0.899

CO

0.656

0.574

0.754

1

0.288

0.688

O₃

0.281

0.529

0.529

0.288

1

0.549

PM2.5

0.475

0.698

0.899

0.688

0.549

1