6

Amakpe International Refinery, Chase Wood Consortium Nigeria Limited, Resources Refinery & Qua Petroleum Refinery Limited

Akwa Ibom State

PM10

8.0

3.2

SO2

501

19.3a

NOx

2214

29.5a

CO

480.3

3.7

VOC

7.0

0.4

7

Clean Water Refinery, NSP Refineries and Oil Services Limited, RIVGAS Petroleum & Energy Limited, Starrex Petroleum Refinery, Port Harcourt Refining Company I & Port Harcourt Refining Company II

River state

PM10

0.2

0.4

SO2

204

7.8a

NOx

957

12.8a

CO

1.6

3.5

VOC

0.1

0.1