Global Reporting Initiative+Nitrogen oxide (NOX) emissions, GRI 305-7-a (formerly G4-EN21-a)+Petrochemical Industries Company (K.S.C)+2014+Discussion

G4-EN21 listed on their GRI Index (page 83-85 of 88)

G4-EN21 discussed on page 64 of 88

SOx value estimated from graph in bottom left corner (350 tonnes), however this cannot be easily converted into mg/m3 as is required.