Trace Metals in PM_(2.5):A Story beyond Border

摘要

In a lab of the CAS Institute of Process Engineering(IPE)in Beijing,Winifred Uduak Anake,a visiting woman scientist from Covenant University.Nigeria was dashing to finish testing the 100 plus samples she collected from her home country.'1 am trying to find out the type and amount of hazardous trace metals bound to the tiny particles trapped on the filters,'she explained:'out of worries about their possible threat to human health.'Before concluding her three-month stay she needed to complete examining the morphology of the particles,total trace metals,and chemical speciation for bioavailable