Fig. 2From: Measurement of ambient particulate matter (PM1.0, PM2.5 and PM10) in Khulna City of Bangladesh and their implications for human healthConcentration of ambient PM at selected monitoring locations in Khulna city of Bangladesh; a variation of PM1.0 concentration, b changes in PM2.5 levels concerning WHO standard and BNAAQS and c fluctuation of PM10 concentration in comparison to WHO standard and BNAAQSBack to article page