The phrase "actually contaminates" is correct and usable in written English.
It can be used when discussing the act of causing contamination or pollution, often to emphasize the reality of the situation.
Example: "The waste from the factory actually contaminates the nearby river, posing a serious threat to local wildlife."
Alternatives: "truly pollutes" or "genuinely taints".
"We don't know how the E. coli actually contaminated the spinach, but we can try to minimize the risk.
"And yet kids are playing on it and it's shocking, in a way, that we are letting kids play on beaches that are actually contaminated".
District civil surgeon Syed Habibullah had told the local media: "We have sent a medical team to the factory to investigate," speculating that the water was actually contaminated.
Under current technology bioplastics for example, actually contaminate recycling streams so what might seem like a smart, sustainable choice for a designer could actually do more harm than good at end of life stage.
In fact, a soiled pizza box put into a recycling bin could actually contaminate the entire batch of recycling and result in the whole lot having to be thrown out".
But they can't say whether this means that meat is actually contaminated, or how much risk that would pose to consumers.
THOSE lines come from molecules of water vapor in OUR atmosphere which is actually contaminating the spectrum of that distant star!
In fact, they actually contaminate the way we think about exercise and transform it from an essential, life-giving activity to guilt-inducing punishment.
These predicted source/sink relationships could alternatively suggest that both are actually contaminated by another, untested source (e.g, fruit flies or other vectors could transfer microbes between these and other surfaces within the brewery).
Although these results suggest that the brain microvasculature cross-presents SQLLNAKYL only during PbA infection but not infection by non-ECM parasites, we needed to rule out the possibility that the presenting cells were actually contaminating myeloid cells that accumulate intravascularly and adhere in the lumen of the microvessels at the time of neurological signs.
