Airborne lead from exhaust? I take it you're not in North America, where the governments banned tetraethyllead in the 1970s through 1990s, or in the EU, where i

Airborne lead from exhaust? I take it you're not in North America, where the governments banned tetraethyllead in the 1970s through 1990s, or in the EU, where it was banned in 2000 (most individual countries banned it earlier), or ...? Even Serbia banned it a couple years ago. According to Wikipedia, only in Algeria is it still used in gasoline.