Huh? That's a idiotic statement. All one has to do is look at the geographical location of Israel and see that the factories are going to be blowing smoke towards the east regardless where it's located in Israel. :roll:
Secondly--that same factory smoke is also blowing into Jerusalem....
It has perhaps not hit you, but one can set up factories specific places. It's common to rule where factories can be built, depending on wind direction, especially in dense populated areas. Concerns like those are taken care of for israelis, but not palestinians. What's your problem really? Beliving that all winds are doomed blowing into Jerusalem like it's a holy black hole?