Research Article
Polycyclic Aromatic Hydrocarbons Bound to PM 2.5 in Urban Coimbatore, India with Emphasis on Source Apportionment
Table 2
Descriptive statistics for PAH concentrations in Coimbatore city.
| Descriptive statistics | Concentration of PAHs in ng/m3 | PHENAN | ANTH | BaA | CHRY | BbF | BkFi | BaP | BghiP | IcdP | TPAHs |
| SIDCO | Minimum | BDL | BDL | BDL | BDL | BDL | BDL | 0.1 | BDL | BDL | 4.2 | Maximum | 17.4 | 88.3 | 292.7 | 113.4 | 75.5 | 10.4 | 18.7 | 73.3 | 18.6 | 619.1 | Mean | 5.5 | 25.4 | 40.1 | 27.2 | 15.2 | 2.1 | 6.1 | 17.4 | 4.5 | 143.5 | Lakshmi mills | Minimum | 15.9 | BDL | BDL | BDL | 3.6 | BDL | BDL | 4.9 | 10.9 | 119.4 | Maximum | 81.9 | 40.2 | 177 | 195.2 | 48.4 | 14.4 | 21.2 | 59.1 | 30 | 419.2 | Mean | 38.8 | 4.5 | 30.8 | 103.4 | 33.2 | 6.5 | 11.8 | 26.6 | 20.4 | 276.0 | Kuniamuthur | Minimum | BDL | BDL | BDL | 0.2 | 0.2 | 0.1 | BDL | 0.1 | 0.1 | 4.1 | Maximum | 157.7 | 85.0 | 142.2 | 312.0 | 157.7 | 40.2 | 20.2 | 56.5 | 84.2 | 744.3 | Mean | 27.3 | 12.9 | 40.3 | 73.0 | 30.0 | 7.7 | 5.7 | 16.1 | 15.2 | 233.2 | Kavundampalayam | Minimum | BDL | BDL | BDL | BDL | BDL | BDL | BDL | BDL | BDL | 23.7 | Maximum | 80.4 | 278.7 | 225.0 | 805.1 | 43.5 | 66.3 | 40.7 | 98.8 | 218.8 | 1632.3 | Mean | 17.4 | 43.5 | 41.9 | 277.5 | 16.3 | 12.5 | 10.4 | 30.5 | 36.4 | 486.4 | 100 feet road | Minimum | BDL | BDL | BDL | BDL | BDL | BDL | BDL | 6.7 | BDL | 13.7 | Maximum | 35.5 | 55.6 | 28.5 | 196.8 | 18.4 | 8.0 | 16.3 | 37.1 | 41.5 | 325.6 | Mean | 12.1 | 20.7 | 8.0 | 81.4 | 3.9 | 3.7 | 9.1 | 21.0 | 15.2 | 175.0 | Limit of detection (LOD) of PAHs (μg/mL) | LOD (μg/mL) | 0.0042 | 0.0014 | 0.0060 | 0.0068 | 0.0056 | 0.0072 | 0.0095 | 0.0088 | 0.0065 | — |
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*
BDL below detectable level.
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