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Table 1 The content of total petroleum contaminants detected by infrared photometric method (unit: mg/L)

From: Characteristics of petroleum contaminants and their distribution in Lake Taihu, China

Sampling points S8 S10 S11 S24 S16 S16 -1 S16-2
Concentration 0.380 1.150 0.640 0.106 0.578 0.210 1.572
0.370 1.116 0.712 0.110 0.448 0.248 1.590
0.372 1.238 0.718 0.101 0.546 0.232 1.656
Average concentration 0.374 1.168 0.690 0.106 0.524 0.230 1.606
RSD(%) 1.41 5.39 6.29 4.37 12.93 8.30 2.75
Recovery (%) 92.10 86.85 75.50 107.16 83.30 101.40 111.20
  1. Note:
  2. S8:Lake center; S10: Dapu; S11:Xiaomeikou; S24: Qidu; S16: Zhushan Bay; S16-1: 1 m below the water surface of S16; S16-2: 2 m below the water surface of S16 (the bottom of S16).
  3. A series of parallel tests (three times for each sample) were carried out to determine the contents of the total petroleum contaminants.The average content of total petroleum contaminants in different water samples were calculated, and the range is from 0.106 mg/L to 1.168 mg/L.