MODEL RELEASED. Drinking water testing. Microbiologist pipetting water onto a petri dish for laboratory analysis. The sample is from an aquifer that supplies drinking water. It is to be tested for the presence of coliform bacteria. The prescence of this type of bacteria indicates that the water has been contaminated by faecal matter | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Rapson, Paul |
Bildgröße: | 3413 px × 5120 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |