American Idol season 14 is hosting the first guy vs. guy finale since Adam Lambert and Kris Allen faced off in season 8 â the top 2 singers are Fradiani and Beckham, with Jax being sent home in the first minute of the show thanks to a difference in less than 0.4 percent of the vote.
How does lead pollute the air? Mainly through the cars emissions that use gasoline with tetra-ethyl lead and the emissions of particulate matter resulting from the extraction, transport, manipulation and storage of lead minerals.
The Six Most-Monitored Air Pollutants in the United States. 1  Carbon monoxide: Air levels have dropped about 51% since 2000. 2  Lead: Levels of lead in the air have dropped about 89% since 1980. 3  Ground-level ozone: Levels have dropped 11% since 2000 and 28% since 1980. 4  Nitrogen dioxide: Levels have dropped 52% since 1980.