PFAS Exchange - Hard

1 / 8

True or False: PFOS and PFOA each have a proposed standard of 4 parts per trillion.

2 / 8

Believe it or not, scientists disagree on how to properly define the diverse class of PFAS. Which of the following is a reason why it’s complicated?

3 / 8

Studies documented that higher PFAS levels are linked to lower levels of antibodies for diphtheria and tetanus in children. Where were these studies conducted?

4 / 8

How have PFAS levels among people living in the U.S. changed since the 2000s?

5 / 8

Why are firefighters more exposed to PFAS than the rest of the population?

6 / 8

According to one EPA database, about how many PFAS are there?

7 / 8

What is the difference between a maximum contaminant level (MCL) and a health advisory level (HAL)?

8 / 8

In 2022, a National Academies panel concluded that there is a higher risk for health problems when PFAS in blood is above what level?

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The average score is 41%