Fine particulate matter and eight heavy metals (Ni, Co, Cu, Pb, Cd, Cr, Mn, and Zn) concentrations were determined in air samples collected from three industrial sites in northern Nigeria using a Handheld Portable Par...Fine particulate matter and eight heavy metals (Ni, Co, Cu, Pb, Cd, Cr, Mn, and Zn) concentrations were determined in air samples collected from three industrial sites in northern Nigeria using a Handheld Portable Particle Counter for PM<sub>2.5</sub> and PM<sub>10</sub> with model number CW-HAT 200 and a High Volume Respirable Dust Sampler (APM 460 NL) in conjunction with an Atomic Absorption Spectrophotometer (Serial No. AA0904M046) Flame Test. The results of the fine particulates ranged from 11.0 - 46.0 μg<span style="color:#4F4F4F;font-family:" font-size:14px;white-space:normal;background-color:#f7f7f7;"="">.</span>m<span style="font-family:Verdana, Helvetica, Arial;white-space:normal;background-color:#FFFFFF;"><sup>-</sup></span><sup>3</sup> for PM<sub>2.5</sub> and 22.0 - 88 <span style="white-space:normal;"> μg</span><span font-size:14px;white-space:normal;background-color:#f7f7f7;"="" style="white-space: normal;color: rgb(79, 79, 79);">.</span><span style="white-space:normal;">m</span><span style="white-space:normal;font-family:Verdana, Helvetica, Arial;background-color:#FFFFFF;"><sup>-</sup></span><sup style="white-space:normal;">3</sup><sup></sup> for PM<sub>10</sub> across all the industrial sites investigated. Most of these results exceeded the WHO permissible levels of 25.0 <span style="white-space:normal;"> μg</span><span font-size:14px;white-space:normal;background-color:#f7f7f7;"="" style="white-space: normal;color: rgb(79, 79, 79);">.</span><span style="white-space:normal;">m</span><span style="white-space:normal;font-family:Verdana, Helvetica, Arial;background-color:#FFFFFF;"><sup>-</sup></span><sup style="white-space:normal;">3</sup> and 50.0 <span style="white-space:normal;"> μg</span><span font-size:14px;white-space:normal;background-color:#f7f7f7;"="" style="white-space: normal;color: rgb(79, 79, 79);">.</span><span style="white-space:normal;">m</span><span style="white-space:normal;font-family:Verdana, Helvetica, Arial;background-color:#FFFFFF;"><sup>-</sup></span><sup style="white-spac展开更多
文摘Fine particulate matter and eight heavy metals (Ni, Co, Cu, Pb, Cd, Cr, Mn, and Zn) concentrations were determined in air samples collected from three industrial sites in northern Nigeria using a Handheld Portable Particle Counter for PM<sub>2.5</sub> and PM<sub>10</sub> with model number CW-HAT 200 and a High Volume Respirable Dust Sampler (APM 460 NL) in conjunction with an Atomic Absorption Spectrophotometer (Serial No. AA0904M046) Flame Test. The results of the fine particulates ranged from 11.0 - 46.0 μg<span style="color:#4F4F4F;font-family:" font-size:14px;white-space:normal;background-color:#f7f7f7;"="">.</span>m<span style="font-family:Verdana, Helvetica, Arial;white-space:normal;background-color:#FFFFFF;"><sup>-</sup></span><sup>3</sup> for PM<sub>2.5</sub> and 22.0 - 88 <span style="white-space:normal;"> μg</span><span font-size:14px;white-space:normal;background-color:#f7f7f7;"="" style="white-space: normal;color: rgb(79, 79, 79);">.</span><span style="white-space:normal;">m</span><span style="white-space:normal;font-family:Verdana, Helvetica, Arial;background-color:#FFFFFF;"><sup>-</sup></span><sup style="white-space:normal;">3</sup><sup></sup> for PM<sub>10</sub> across all the industrial sites investigated. Most of these results exceeded the WHO permissible levels of 25.0 <span style="white-space:normal;"> μg</span><span font-size:14px;white-space:normal;background-color:#f7f7f7;"="" style="white-space: normal;color: rgb(79, 79, 79);">.</span><span style="white-space:normal;">m</span><span style="white-space:normal;font-family:Verdana, Helvetica, Arial;background-color:#FFFFFF;"><sup>-</sup></span><sup style="white-space:normal;">3</sup> and 50.0 <span style="white-space:normal;"> μg</span><span font-size:14px;white-space:normal;background-color:#f7f7f7;"="" style="white-space: normal;color: rgb(79, 79, 79);">.</span><span style="white-space:normal;">m</span><span style="white-space:normal;font-family:Verdana, Helvetica, Arial;background-color:#FFFFFF;"><sup>-</sup></span><sup style="white-spac
