Abstract and Keywords

People’s health and sustainable life are essentially based on the existence of clean air. The industrial revolution and human evolution affect the quality of the air deteriorating it considerably. Human activities are the main contributors to air pollution by rising up energy production, fossil fuel burning, and industry.

The project entitled “ PHOtolysis of NItroaromatic Compounds: a new source of HONO and Secondary Organic Aerosols formation in the atmosphere” (PHONIC-HONO-SOA) will be implemented at University „Alexandru Ioan Cuza” from Iasi with the main goal to build up and validate an additional facility (flow tube photoreactor), proved already to work complementary to the existing simulation chambers.

With the validated flow tube will be performed gas phase investigations of the nitroaromatic photolysis with the detection and quantification of the degradation products, to prove the literature proposed degradation mechanisms of 2-nitrophenols and HONO formation. Additionally will be performed the investigation of the secondary organic aerosol formation from the photolysis of nitroaromatic compounds.

Key words: nitrophenol, gas phase mechanism, HONO, aerosol, OH radicals

Existenta speciei umane in conditii propice vietii este esential bazata pe existenta unui aer curat. Revolutia industriala si evolutia umana afecteaza calitatea aerului deteriorandu-l considerabil. Activitatile umane sunt principalii contributori la cresterea poluarii aerului prin cresterea continua a productiei de energie, a arderilor combustibilului fosil si a industriei.

Proiectul intitulat "Fotoliza compusilor nitroaromatici: o noua sursa de formare a HONO si aerosoli organici secundari in atmosfera " va fi implementat la Universitatea „Alexandru Ioan Cuza” din Iasi cu scopul principal de a contrui si valida o noua facilitate (fotoreactor in tub cu flux de aer), deja dovedit ca fiind o facilitate complementara camerelor de simulare atmosferica.

Cu fotoreactorul in tub cu flux de aer vor fi realizate investigatii asupra fotolizei compusilor nitroaromatici prin detectarea si cuantificarea produsilor rezultati din degradarea fotolitica a 2-nitrofenolului si formarea acidului azotos, HONO. Pe langa aceasta vor fi realizate studii asupra formarii aerosolilor organici secundari din fotoliza compusilor nitroaromatici

Cuvinte cheie: nitrofenoli, mecanisme in faza gazoasa, HONO, aerosol, radicali OH