1: List the atmospheric conditions as they relate to environmental pollutants that you created in the Metals tests for the following materials:

Salt solution (NaCl), Vinegar (acetic acid CH3COOH), ammonia (NH4), Control

What key atmospheric conditions did we exclude?

How accurate do you think our tests were and why?

2: Describe the effects of the Nitrogen emitting materials on each tab.

3: List three outdoor sources for nitrogen emitting pollutants.

4: If you look at the results of the Oddy tests from last year, describe the effects of the Sulfur emitting materials on each of the metal tabs in the Oddy tests.

5: List other sulfur emitting materials that you might find in your home and that might be found in the museum environment.