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 ban on leaded gasoline led to thousands of tons of lead not being released in the air by automobiles. Similar bans in other countries have resulted in lowering levels of lead in people's bloodstreams. A side effect of the lead additives was protection of the valve seats from erosion.