| effect of biological activity(noun, expression, form, study, science) |
| effect of human activity(noun, expression, form, study, science) |
| electrochemical method(noun, expression, study, treatment, science) |
| environmental indicator(noun, expression, form, study, science) |
| environmental study(noun, expression, study, treatment, science) |
| freshwater environmental quality parameter(noun, expression, form, study, science) |
| gas chromatography-mass spectrometry(noun, expression, study, treatment, science) |
| gravimetric method(noun, expression, study, treatment, science) |
| high resolution mass spectrometry(noun, expression, study, treatment, science) |
| immunoassay(noun, study, treatment, science, knowledge) |
| inductively coupled plasma atomic emission spectroscopy(noun, expression, study, treatment, science) |
| inductively coupled plasma mass spectrometric spectroscopy(noun, expression, study, treatment, science) |
| liquid chromatography-mass spectrometry(noun, expression, study, treatment, science) |
| mass spectrometry(noun, expression, study, treatment, science) |
| medium(noun, form, study, science, field) |
| natural place(noun, expression, form, study, science) |
| organism(noun, form, study, science, field) |
| particle counter(noun, expression, study, treatment, science) |
| peer-reviewed test method(noun, expression, study, treatment, science) |
| pollutant(noun, form, study, science, field) |