Table 2. Concentrations of BTEX and PAHs detected in the water accommodated fractions (WAF) of North West Shelf Condensate and of individual aromatic hydrocarbons used in the current study.
| Analyte | 100% Condensate WAF (coral) | 100% Condensate WAF (sponge) | 100% Benzene WAF (coral) | 100% Toluene WAF (coral) | 100% p-Xylene WAF (coral) | 100% Naphthalene WAF (coral) | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Initial | Final −UV | Final + UV | Initial | Final −UV | Final + UV | Initial | Final | Initial | Final | Initial | Final | Initial | Final | |
| benzene | 4,500 | 4,000 | 1,100 | 6,967 | 6,200 | 6,100 | 630,000 | 465,608 | ||||||
| toluene | 6,100 | 3,900 | 1,100 | 17,000 | 9,300 | 8,100 | 140,000 | 100,000 | ||||||
| ethylbenzene | 140 | 110 | 29 | 360 | 310 | 290 | ||||||||
| m,p-xylene | 1,300 | 830 | 260 | 2,867 | 1,200 | 2,000 | 36,000 | 41,000 | ||||||
| o-xylene | 680 | 460 | 130 | 650 | 590 | 820 | ||||||||
| naphthalene | 86 | 58 | 72 | 105 | 104 | 98 | 15,000 | NA | ||||||
| C1-naphthalenes | 67 | 49 | 60 | 90 | 76 | 79 | ||||||||
| C2-naphthalenes | 29 | 24 | 24 | |||||||||||
| fluorene | 1 | 1 | ||||||||||||
| phenanthrene | 1 | |||||||||||||
| Total BTEX | 12,720 | 9,300 | 2,619 | 27,843 | 17,600 | 17,310 | 630,000 | 465,608 | 140,000 | 100,000 | 36,000 | 41,000 | ||
| Total PAH | 157 | 107 | 132 | 224 | 203 | 201 | 15,000 | NA | ||||||
| TPAH | 12,877 | 9,407 | 2,751 | 28,067 | 17,803 | 17,511 | 630,000 | 465,608 | 140,000 | 100,000 | 36,000 | 41,000 | 15,000 | NA |
| Mean total aromatics (24 h) | 11,142 | 7,813 | 22,935 | 22,789 | 547,804 | 120,000 | 38,500 | 15,000 | ||||||
All concentrations are in μg l−1. NA = not analysed.