Tap water analysis quality control concept. Hand with a flask and water tap ckose up.
Schlüsselwörter
water,
analysis,
pollution,
tap,
research,
researching,
dirty,
home,
hand,
holding,
flask,
ampoule,
faucet,
closeup,
close,
up,
exam,
sample,
probe,
bleach,
cles,
plumbing,
chemical,
composition,
hard,
soft,
control,
quality,
cold,
disinfection,
iron,
colours,
turbidity,
smell,
aluminium,
exam,
pollutant,
test,
arsenic,
men at work,
scientist,
concept,
background
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