All of the following are true of lead as an environmental hazard except?

a. Paint in toys is an important potential source of lead exposure.

b. The higher the blood lead levels the more severe the biological effects due to lead poisoning.

c. Paint in homes is no longer a source of lead exposure since lead is no longer allowed in paint.

d. Exposure to lead may come from food, water and air.

http://www.health.ny.gov/environmental/lead/sources.htm

I'll be glad to check your answer.

I believe the answer is C because since lead based paints have been banned since 1978, then not many homes or toys will be left that contain a sufficient amount of lead to be harmful to your body.

I disagree. Apparently you didn't read the link I posted.

Then I'm guessing B since it is the only one that doesn't pose a potential threat to the environment but to you. And it is also not found to be a potential way to contaminate others

To determine which of the statements is not true, let's analyze each option:

a. Paint in toys is an important potential source of lead exposure.
To assess the accuracy of this statement, one would need to investigate whether paint in toys can potentially contain lead. This information can be found by researching studies, reports, or regulations regarding paint used in the production of toys. By examining credible sources, such as scientific literature or government guidelines, one can find the necessary information to confirm whether paint in toys is indeed a potential source of lead exposure.

b. The higher the blood lead levels, the more severe the biological effects due to lead poisoning.
To verify the validity of this statement, one can consult medical literature or studies concerning the correlation between blood lead levels and the severity of lead poisoning effects. These sources should clarify whether there is a direct relationship between blood lead levels and the severity of biological effects.

c. Paint in homes is no longer a source of lead exposure since lead is no longer allowed in paint.
The accuracy of this statement can be confirmed by referencing regulations and laws related to the use of lead in paint. Official documentation or governmental guidelines can provide insight into whether lead is permitted in household paint or if it has been completely banned.

d. Exposure to lead may come from food, water, and air.
This statement relates to the different pathways through which lead exposure may occur. To verify its accuracy, one can consult scientific research or health organizations that study the sources and effects of lead exposure. These sources will provide information on the various routes through which individuals can be exposed to lead.

By researching each statement individually using credible sources such as scientific literature, government regulations, or health organization guidelines, one can determine which statement is not true. The research process enables us to find reliable and factual information to make a conclusive judgment.