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Avaliação de NO2 na atmosfera de ambientes externos e internos na cidade de Araraquara, São Paulo
(Sociedade Brasileira de Química, 2009-01-01)
The seasonal behavior of NO2 concentration shows a maximum occurring during sugarcane crop and this suggests that the biomass burning is significant source of emission at this time of the year. Along the day, the variation ...
Avaliação de NO2 na atmosfera de ambientes externos e internos na cidade de Araraquara, São Paulo
(Sociedade Brasileira de Química, 2009-01-01)
The seasonal behavior of NO2 concentration shows a maximum occurring during sugarcane crop and this suggests that the biomass burning is significant source of emission at this time of the year. Along the day, the variation ...
Avaliação de NO2 na atmosfera de ambientes externos e internos na cidade de Araraquara, São Paulo
(Sociedade Brasileira de Química, 2014)
Colorimetric determination of atmospheric nitrogen dioxide using preconcentration on C-18 cartridge.
(Soc Brasileira Quimica, 2002-05-01)
COLORIMETRIC DETERMINATION OF ATMOSPHERIC NITROGEN DIOXIDE USING PRECONCENTRATION ON C-18 CARTRIDGE, An alternative analytical method for nitrogen dioxide (NO,) in atmosphere was developed. The collection of NO, is performed ...
Study on the use of oxidant scrubbers for elimination of interferences due to nitrogen dioxide in analysis of atmospheric dimethylsulfide
(Soc Brasileira Quimica, 2000-01-01)
In this work, oxidant scrubbers were evaluated for their ability to prevent sampling losses of dimethylsulfide caused by reactions with nitrogen dioxide. Various compounds and mixtures were used in the preparation of the ...
DEVELOPMENT OF SENSITIVE PASSIVE SAMPLER FOR NITROGEN DIOXIDE AIR POLLUTION MONITORING
(Soc Brasileira Quimica, 2017-10-01)
A passive sampler constructed with a new type of material and used for measurement of ambient nitrogen dioxide is presented. The sampler was constructed with parts of two 50 mL conical centrifuge tubes. The procedure is ...
Measurement of nitrogen dioxide and nitrous acid using gas-permeable liquid core waveguides
(2001-03-15)
Nitrogen dioxide is an important atmospheric contaminant, classified as a criteria pollutant in the United States. It can be sensitively determined by the simple colorimetric Griess-Saltzmann method. This can constitute ...
Measurements and modeling of reactive nitrogen deposition in southeast Brazil
(2011)
Increased reactive nitrogen (Nr) deposition due to expansion of agro-industry was investigated considering emission sources, atmospheric transport and chemical reactions. Measurements of the main inorganic nitrogen species ...