Other contaminants

Hallo, we are working in a project located outside the US. We have found local source of data for most of the air contaminants listed by NAAQS. However, we have not found contaminants for PM2.5: i. Can we take NAAQS PM2.5 limits instead of local average data? http://www.epa.gov/ttn/naaqs/standards/pm/s_pm_history.html ii. We intend to compare CFD's output contaminant levels against 24h average data. Is this the right methodology to demonstrate compliance? iii. We are a bit confused about what specific contaminants should be considered under the category "Other air contaminants". After doing some research on OSHA and NIOSH standards we have found out a really extensive list of air contaminants to be controlled. We would appreciate to have these air contaminants narrowed down in order to simplify documentation. Please check out these two links: https://www.osha.gov/pls/oshaweb/owadisp.show_document?p_table=standards&p_id=9992 http://www.cdc.gov/niosh/idlh/intridl4.html Thanks