A Review on Atmospheric Analysis Focusing on Public Health, Environmental Legislation and Chemical Characterization.

Atmospheric pollution has been considered one of the most important topics in environmental science once it can be related to the incidence of respiratory diseases, climate change, and others. Knowing the composition of this complex and variable mixture of gases and particulate matter is crucial to understand the damages it causes, help establish limit levels, reduce emissions, and mitigate risks. In this work, the current scenario of the legislation and guideline values for indoor and outdoor atmospheric parameters will be reviewed, focusing on the inorganic and organic compositions of particulate matter and on biomonitoring.

Aerosol dilution as a new sample introduction strategy for microwave-induced plasma optical emission spectrometry.

A new sample introduction method using aerosol dilution for microwave-induced plasma optical emission spectrometry (MIP OES) is presented. Signal emissions from N and OH species were monitored for plasma diagnostics and quantity of solvent plasma load (Q). The N/OH signal intensity ratio demonstrated that aerosol dilution is a desolvation process which can reduce the Q, increasing plasma energy.

Biomonitoring of metals for air pollution assessment using a hemiepiphyte herb (Struthanthus flexicaulis).

This work presents first results on elemental characterization of a parasite plant, Struthanthus flexicaulis, collected in urban, industrial and rural areas of Rio de Janeiro state, Brazil, in order to evaluate this plant as a biomonitor of metals pollution. The results were also compared to those obtained for fine particulate matter (PM2.5) collected from filters in nearby locales.