Chemical type
LC
50
(ppm)
Scale inhibitor
Biocides
Reverse Emulsion breakers
Surfactants cleaners
Corrosion inhibitors
Emulsion breakers
Paraffin inhibitors
1200-12,000
0.2-1000
0.2-15,000
0.5-429
0.2-1000
4-40
1.5-44
Table 2:
Toxicity of Production Chemicals [35].
