Hi. I have the same concern about the sandstorm. Normally how long would it last from the previous sandstorm experience in 2006? I read from the news that the dusts have alreadys settled since yesterday and the air quality is getting better. Is this true? Are there more sandstorms to come? We'll be going there from 4-9 April 2010. We'd like to know if it's ok to travel around this time or we should reschedule?