First, I want to thank you and Ivan Anderson for giving me response to my quetions in haze forum but I am still waiting for your promised next answers on other related pollutants. Instead of giving you more burdens to look back to my first e-mail, I would better copy the unanswered questions below :
My boss also asked me to search for other smog/haze indicators. Do you
> think that the six key pollutants (NOx,CO, Lead, VOC, PM - 10 and SO2) are
> representative so far? How can I get the daily data of each from?
> Is there any relationship pattern among those?
I also don't understand about the way/formula by which the pollutant standard index is calculated. This is really important to me because this can be a good start for me from which I can understand what parameters are involved and how the other pollutants (that I mentioned above) contribute to those PSI numbers.
I got the article on API calculation from Hongkong Department of Health website
> but I still couldn't find the relationship pattern among those pollutants
> I could't understand the interpretation in the field "Relationship with the AQO (Air Quality Objectives"
> I don't understand why concentration of one pollutant is measured by 24-h whilst the others are by 24-h and 1-h or 8-h and 1-h or only 1-h?
> What is API/PSI sub-index?
Sorry for asking many questions but I think it maybe very useful for to get your response. Thank you very much for giving your time for me.