The phrase "against exposures" is correct and usable in written English.
It can be used in contexts discussing protection or opposition to various types of exposures, such as environmental, health, or financial risks.
Example: "The new policy was implemented to safeguard employees against exposures to harmful chemicals in the workplace."
Alternatives: "to mitigate risks" or "to protect from hazards".
If you're still committed to impressions, consider also weighting consumer interactions against exposures (something simple like dividing your and your category's impressions by their consumer interactions), so you can understand effectiveness more clearly and control for spend.
The recent chemical spill disaster in West Virginia has brought into sharp focus the weak measures we have in place for safeguarding people and the environment against exposures to harmful chemicals.
Our goal was to assess whether the OSWER PRG protects infants against exposures from breast-feeding, and to evaluate the perchlorate RSC.
In conclusion, we were able to demonstrate that an organic diet provides a dramatic and immediate protective effect against exposures to organophosphorus pesticides that are commonly used in agricultural production.
"Until we know more about this disease, protecting against exposure is extremely important".
Many of those to be vaccinated work directly with patients who are advised against exposure to the vaccine.
Potassium iodide protects against exposure to radioactive iodine that would be released by a nuclear bomb or a damaged nuclear reactor.
In London, the British Treasury said it would "protect financial institutions against exposure to exceptional future credit losses on certain portfolios of assets" in return for a fee.
In the last two years risk management has become a high priority for charities guarding against exposure in the stock markets and dealing with increased media scrutiny of accounts.
Galvanizing, protection of iron or steel against exposure to the atmosphere and consequent rusting by application of a zinc coating.
Nor was she allowed to wear a full-body wetsuit, which would have helped protect against exposure and jellyfish stings.
