ABSTRACT
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The.rapid.explosion.of.production.and.use.of.engineered.nanoparticles.has.outpaced. the. scientific. community’s. ability. to. monitor. their. presence. in. the. environment.. Without.measurement.data,.it.is.not.possible.to.fully.evaluate.whether.the.promises. of.nanoparticles.are.accompanied.by.significant.ecological.or.human.health.risks.. Numerous.national.and.international.agencies.and.research.groups.have.recognized. this.gap.and.put. in.place.research.programs. to.address. it..However,. the. technical. requirements. for. the. detection. and. characterization. of. nanoparticles. in. complex. environmental.systems.push.the.limits.of.current.sampling.techniques.and.instrumentation..In.most.cases,.multiple.complementary.measurements.are.likely.necessary.to.detect.and.understand.the.importance.of.nanoparticles.in.air,.water,.or.soil. because.physical.properties.as.well.as.chemical.composition.determine.activity.and. environmental.impact.or.risk..Environmental.analyses.of.nanoparticles.are.not.common.offerings.at.commercial.environmental.laboratories.at.this.time,.and.they.are. not.likely.to.become.so.in.the.near.future.
