United States Environmental Protection Agency n.d., Volatile Organic Compounds factsheet, US EPA, Washington DC, viewed 11 July 2014 Exhibit 48 Expert report of Donald – Campbell, para. 93 United States Environmental Protection Agency n.d., Ground Level Ozone Ecosystem Effects factsheet, – US EPA, Washington DC, viewed 8 July 2014, Exhibit 48 Expert report of Donald – Campbell, paras. 22-39; Exhibit 39 – Expert report of Claire Richardson, table 3; Exhibit 38 Statement of Paul – Torre, para.14 United States Environmental Protection Agency n.d., Polycyclic Aromatic Hydrocarbons factsheet, US EPA, Washington DC, viewed 8 July 2014,
United States Environmental Protection Agency n.d., Volatile Organic Compounds factsheet, US EPA, Washington DC, viewed 11 July 2014 Exhibit 48 – Expert report of Donald Campbell, para. 93 United States Environmental Protection Agency n.d., Ground Level Ozone – Ecosystem Effects factsheet, US EPA, Washington DC, viewed 8 July 2014, Exhibit 48 – Expert report of Donald Campbell, paras. 22-39; Exhibit 39 – Expert report of Claire Richardson, table 3; Exhibit 38 – Statement of Paul Torre, para.14 United States Environmental Protection Agency n.d., Polycyclic Aromatic Hydrocarbons factsheet, US EPA, Washington DC, viewed 8 July 2014,