@TechReport{FortiAlca:2013:EsDeEs,
author = "Forti, Maria Cristina and Alcaide, Roberta Lee Maciviero",
title = "Determina{\c{c}}{\~a}o das caracter{\'{\i}}sticas
qu{\'{\i}}micas da atmosfera em diferentes ambientes no Estado
de S{\~a}o Paulo: estudo da deposi{\c{c}}{\~a}o de
esp{\'e}cies reativas de nitrog{\^e}nio",
institution = "Instituto Nacional de Pesquisas Espaciais",
year = "2013",
type = "PRP",
number = "INPE-17296-PRP/259",
address = "S{\~a}o Jos{\'e} dos Campos",
note = "{Relat{\'o}rio Parcial de pesquisa Projeto FAPESP 2012/06416-1}",
keywords = "nitrog{\^e}nio, qu{\'{\i}}mica atmosf{\'e}rica, protocolos
LAQUATEC, SAAD, nitrogen, atmospheric chemistry, LAQUATEC
protocols SAAD.",
abstract = "A varia{\c{c}}{\~a}o da quantidade de nitrog{\^e}nio reativo
presente nos diferentes ambientes terrestres est{\'a} intimamente
ligada {\`a}s mudan{\c{c}}as ambientais, {\`a}
contamina{\c{c}}{\~a}o de ecossistemas aqu{\'a}ticos e
terrestres e {\`a} perda de biodiversidade. O entendimento sobre
a acumula{\c{c}}{\~a}o de nitrog{\^e}nio reativo no ambiente
depara-se ainda com grandes lacunas e quest{\~o}es como quanto o
aumento da deposi{\c{c}}{\~a}o de nitrog{\^e}nio reativo pode
interferir no funcionamento de diferentes ecossistemas ou como
ocorre a intera{\c{c}}{\~a}o e o acoplamento do ciclo do
nitrog{\^e}nio com os outros ciclos tais como o do C, S e P ainda
precisam de resposta. Desta forma a quest{\~a}o
cient{\'{\i}}fica que se apresenta refere-se {\`a}
quantifica{\c{c}}{\~a}o da concentra{\c{c}}{\~a}o e da
deposi{\c{c}}{\~a}o de esp{\'e}cies qu{\'{\i}}micas de
nitrog{\^e}nio reativo nas formas, inorg{\^a}nica e
org{\^a}nica, presentes na atmosfera de algumas regi{\~o}es do
Estado de S{\~a}o Paulo. Esta pesquisa buscar{\'a} determinar, a
partir das medidas de concentra{\c{c}}{\~a}o de diferentes
esp{\'e}cies qu{\'{\i}}micas, a deposi{\c{c}}{\~a}o
atmosf{\'e}rica das mesmas, em alguns locais com diferentes
ambientes no estado de S{\~a}o Paulo viabilizando a
utiliza{\c{c}}{\~a}o de um sistema de amostragem de baixo custo
e com possibilidade de replicar o modelo estabelecido para outras
regi{\~o}es, estendendo-se assim a {\'a}rea de
observa{\c{c}}{\~a}o. Ser{\~a}o determinadas as
concentra{\c{c}}{\~o}es em extrato aquoso das seguintes
esp{\'e}cies qu{\'{\i}}micas gasosas: \$NH_{3}\$,
\$HNO_{3}\$, \$SO_{2}\$, HC1 e no aerossol \$NH^{+}_{4}\$,
\$NO^{-}_{3}\$, \$SO^{2-}_{4}\$, \$CI^{-}\$, \$Na^{+}\$,
\$K^{+}\$, \$Ca^{2+}\$, \$Mg^{2+}\$ presentes na atmosfera.
Com os resultados desta pesquisa, espera-se que possamos
contribuir com informa{\c{c}}{\~o}es para avaliar a
vulnerabilidade regional a eventuais mudan{\c{c}}as na
deposi{\c{c}}{\~a}o de esp{\'e}cies reativas de
nitrog{\^e}nio, decorrentes de sua acumula{\c{c}}{\~a}o e
deposi{\c{c}}{\~a}o; identificar as poss{\'{\i}}veis
mudan{\c{c}}as nos padr{\~o}es de deposi{\c{c}}{\~a}o (caso
ocorram) sobre os servi{\c{c}}os dos ecossistemas bem como
contribuir para o entendimento da conex{\~a}o entre o componente
atmosf{\'e}rico do ciclo do nitrog{\^e}nio e os ciclos do C e do
S, e como essas altera{\c{c}}{\~o}es podem interferir no clima.
ABSTRACT: Variations in the quantity of reactive nitrogen present
in various terrestrial environments are closely linked to
environmental changes, aquatic and terrestrial ecosystems
contamination and biodiversity loss. The knowledge concerning the
reactive nitrogen accumulation in the environment presents major
gaps and issues such as how much the increase in reactive nitrogen
deposition can interfere on ecosystems functioning or how nitrogen
cycle interactions and coupling with other cycles such as the C, S
and P occurs emerges. In this way the scientific question that is
raised and that we intend to answer with this project is concerned
to the concentration and deposition determination of reactive
nitrogen chemical species in its inorganic and organic forms, into
the atmosphere of some regions of the State of S{\~a}o Paulo. In
this research we will seek the determination of atmospheric
deposition acquired from diverse chemical species concentration
measurements in various sites with different environment
characteristics in the State of S{\~a}o Paulo entitling the use
of a low-cost sampling system and opening the possibility of
replicate the established model for other regions and therefore,
to extend the observation area. The chemicals of interest for this
research are \$NH_{3}\$, \$HNO_{3}\$, \$SO_{2}\$, HC1
measured on the aqueous extract of atmospheric gaseous phase and
\$NH^{+}_{4}\$, \$NO^{-}_{3}\$, \$SO^{2-}_{4}\$,
\$CI^{-}\$, \$Na^{+}\$, \$K^{+}\$, \$Ca^{2+}\$,
\$Mg^{2+}\$ measured on the aqueous extract of the atmospheric
particulate phase. We expect to contribute with information that
allowed to evaluate the regional vulnerability to changes and
possible alteration in the reactive nitrogen species deposition as
a consequence of its accumulation and deposition; identify the
possible deposition patterns changes (if any) on ecosystem
services as well as to provide information that may contribute to
the understanding of the atmospheric component of the nitrogen
cycle and C and S cycles connection as these changes may affect
the climate.",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto
Nacional de Pesquisas Espaciais (INPE)}",
copyholder = "SID/SCD",
language = "pt",
pages = "37",
ibi = "8JMKD3MGP7W/3F945N2",
url = "http://urlib.net/ibi/8JMKD3MGP7W/3F945N2",
targetfile = "publicacao.pdf",
urlaccessdate = "11 maio 2024"
}