i am using Respirable Dust Sampler for ambient air quality monitoring. I want to keep maintain my quality records like uncertainty, %RSD. Kindly send me detail about this, excel calculation sheet.
i welcome some valuable suggestions/query regarding this.
Thanks in advance.
Dear Anand
Please go through the CPCB Indian website, The CPCB has published manual of Ambient air quality sampling and monitoring guidelines, I am attaching few for you. hope they will be help full.
As mentioned in chapter 5.7.1 of CPCB doc, from my point of view the main uncertainty contributors are :
- the weight of the sampled filter. You can estimate the uncertainty by a proper balance caracterisation (with a reference mass close to your filter mass and repeated measurement) and/or round robin participation (gravimetric round robin). I prefer the round robin that takes into account more parameters
- the volume of air that is sampled. You can estimate it with a certified volumetric meter and/or a certified flow meter and repeated measurements during the sampling
Regards
The attached US EPA publication "Quality Assurance Guidance Document 2.12: Monitoring PM2.5 in Ambient Air Using Designated Reference or Class I Equivalent Methods" may provide you with useful information about measuring fine particulates in ambient air.
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