The phrase "ambient contamination" is correct and usable in written English.
It can be used in contexts related to environmental science, pollution, or discussions about the presence of unwanted substances in a surrounding area.
Example: "The study revealed significant levels of ambient contamination in the urban environment, affecting both air and water quality."
Alternatives: "background pollution" or "surrounding contamination".
Contaminant levels absorbed in food may reflect ambient contamination (Kalantzi et al. 2001).
In order to avoid the potential ambient contamination, the experiments were conducted in a biological controlled environment (i.e., inside a bio-safety cabinet level II (SterilGARD Hood, Baker Company)).
The influence from ambient contamination levels was particularly striking for eels from the four sampling sites at the Rhine as their contamination concentrations reflected the increasing pollution levels for most substances along the river course.
At the end of the exhalation manoeuvre, the three way valve was promptly closed to avoid ambient contamination.
A new minienvironment for controlling the process area from ambient air contamination was designed and evaluated.
Many interesting prebiotic redox reactions can occur driven by Fe(II -containing mII -containingFe2+-containing fluids, and so oxidation of iron can also occur chemineralsand nor always be due to ambinnt atmosphere contamination.
All mitoPO2 and ODR measurements were performed in a dark environment to prevent ambient light contamination.
For the assessment of the field campaign, Enterococcus concentrations of 1 cfu/100 mL or less are considered to be potentially influenced by ambient air contamination.
Hence, the pump and tubing are not considered a likely source, supporting the conclusion that ambient air contamination is the most likely source.
We note that the tests do not consider the effects of ambient air contamination, which may have introduced additional bias in the sample concentration.
Properly controlling for ambient air contamination through QA/QC procedures allowed us to suggest an alternate MDL that was determined by the sampling procedure rather than the laboratory procedure.
