Abstract:
:Sulfur trioxide in the exhaust gas of an internal combustion engine is removed and concentrated by absorption in a solution of 80% isopropyl alcohol, which quantitatively absorbs it and inhibits the oxidation of any sulfur dioxide which may be absorbed. The absorbed sulfur trioxide (sulfuric acid) is determined by an absorption titration by using barium chloride as the titrant and thorin as the indicator. The sulfur dioxide content of the exhaust is measured continuously by means of a DuPont Model 411 ultraviolet photoanalyzer.
journal_name
Environ Health Perspectjournal_title
Environmental health perspectivesauthors
Arnold DRdoi
10.1289/ehp.7510117subject
Has Abstractpub_date
1975-04-01 00:00:00pages
117-9eissn
0091-6765issn
1552-9924journal_volume
10pub_type
杂志文章abstract::We conducted a study on building-related respiratory disease and associated social impact in an office building with water incursions in the northeastern United States. An initial questionnaire had 67% participation (888/1,327). Compared with the U.S. adult population, prevalence ratios were 2.2-2.5 for wheezing, life...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.7559
更新日期:2005-04-01 00:00:00
abstract:OBJECTIVES:The U.S. Environmental Protection Agency is working toward gaining a better understanding of the human health impacts of exposure to complex air pollutant mixtures and the key features that drive the toxicity of these mixtures, which can then be used for future scientific and risk assessments. DATA SOURCES:...
journal_title:Environmental health perspectives
pub_type: 杂志文章,评审
doi:10.1289/ehp.1204939
更新日期:2012-09-01 00:00:00
abstract::The purpose of the study was to determine whether the risk of childhood acute lymphoblastic leukemia (ALL) associated with drinking water disinfection by-products was modified in the presence of variants in genes involved in the metabolism of trihalomethanes (THMs). We included a subset of cases from a population-base...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.02110591
更新日期:2002-06-01 00:00:00
abstract::There is concern about the human health effects of inhalation of acid compounds found in urban air pollution. It was the purpose of this study to investigate three of these acid compounds, sulfur dioxide (SO2), sulfuric acid (H2SO4), and nitric acid (HNO3) in a group of allergic adolescent subjects. Subjects were expo...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.8979173
更新日期:1989-02-01 00:00:00
abstract::Widespread and persistent organochlorine (OC) contaminants, such as polychlorinated biphenyls (PCBs) and pesticides, are known to have broad-ranging toxicities in wildlife. In this study we investigated, for the first time, their possible health effects on loggerhead sea turtles (Caretta caretta). Nonlethal fat biopsi...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.6923
更新日期:2004-07-01 00:00:00
abstract::This paper will briefly outline those elements which must be considered in assessing the effects of any given compound which might impinge on the actions of adrenocortical steroids. Considerations that ought to be taken into account include the following: the delivery to the affected cells of corticosteroids, the upta...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.813899
更新日期:1981-04-01 00:00:00
abstract::Ethene is, on a molar basis, a major urban air pollutant. It has been shown beyond doubt that a fraction of inhaled ethene is metabolized in mammals (including humans) via ethylene oxide, an electrophilic reagent that has been shown to be mutagenic and carcinogenic. To the extent that the linearity hypothesis for dose...
journal_title:Environmental health perspectives
pub_type: 杂志文章,评审
doi:10.1289/ehp.102-1566931
更新日期:1994-10-01 00:00:00
abstract::This study constitutes one part of a program for assessing the impact of coal-fired power plants on the surrounding communities. A questionnaire was mailed to a total of 12,000 subjects living in six areas with coal-fired plants and in matched reference areas. The participation rate was 77.3%. In one coal-fired plant/...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.8670239
更新日期:1986-12-01 00:00:00
abstract::We present a case of a diamond polisher who developed occupational asthma as a result of prolonged exposure to various potent and well-recognized asthma-inducing agents, including cobalt dust. Although the patient was seen by various medical professionals during the initial course of his illness and given an early dia...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.011091303
更新日期:2001-12-01 00:00:00
abstract:BACKGROUND:Bacterial meningitis causes a high burden of disease in the African meningitis belt, with regular seasonal hyperendemicity and sporadic short, but intense, localized epidemics during the late dry season occurring at a small spatial scale [i.e., below the district level, in individual health centers (HCs)]. I...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/EHP2752
更新日期:2018-09-01 00:00:00
abstract::Biological monitoring of genotoxic hazard in the rubber industry was performed in 19 male workers and 20 age-matched controls in a local health unit in northern Italy. Peripheral blood lymphocytes were analyzed for the presence of DNA damage (single-cell microgel-electrophoresis, or comet assay) and for cytogenetic pa...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.96104s3543
更新日期:1996-05-01 00:00:00
abstract:BACKGROUND:The presence of pharmaceuticals in aquatic environments and in drinking water has prompted significant public interest regarding potential adverse ecological effects and risks to human health. OBJECTIVES:The Environmental Health Summit held in North Carolina, 10-11 November 2008, explored the issues associa...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.0901532
更新日期:2010-07-01 00:00:00
abstract:BACKGROUND:Previous studies have suggested an effect of high arsenic concentration on cognitive and neurobehavioral function in humans. OBJECTIVE:Our goal was to identify demographic and nutritional factors that are associated with As exposure and the influence of this exposure on cognitive function in school-age chil...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.9961
更新日期:2007-09-01 00:00:00
abstract::Syrian hamster embryo cells were treated with galactose oxidase, followed by reduction with tritiated sodium borohydride at pH 7.4. The labeling patterns of galactosyl and N-acetyl galactosaminyl residues on the cell surface were altered in comparing scraped vs. unscraped and buffer vs. media-soaked cells treated with...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.8034103
更新日期:1980-02-01 00:00:00
abstract::We measured tumor-associated proteins (TAPs) and pollutants in blood, serum, and urine of 200 nonsmoking women 50-65 years of age, residing in the rural municipality of Peer or in Hoboken or Wilrijk, industrial suburbs of Antwerp, Belgium. Persons with occupational exposures or commuting to other towns were excluded. ...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.8811
更新日期:2006-06-01 00:00:00
abstract::Alveolar macrophages were treated with carbon blacks and adsorbates in order to evaluate the biologic effect of adsorbate, adsorbent and adsorbate-adsorbent complexes. Their capacity to phagocytize a subsequent challenge via the Fc-membrane receptor was quantified. Phagocytosis was suppressed in a dose-related manner ...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.9086337
更新日期:1990-06-01 00:00:00
abstract::The review of over 800 references on aluminum (Al) published since the mid-fifties covers the occurrence of Al in soil, air, water, plants and food products, as well as air and water pollution problems. In addition, the existing quality criteria, the biology and toxicology of Al, and the therapeutic and medical uses a...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.7483
更新日期:1974-08-01 00:00:00
abstract::A potential connection exists between exposure to organochlorine chemicals and the increasing prevalence of endometriosis. Evidence shows that dioxin (2,3,7,8-tetrachlorodibenzo-p-dioxin) can increase the incidence and severity of the disease in monkeys and can promote the growth or survival of endometrial tissue impl...
journal_title:Environmental health perspectives
pub_type: 杂志文章,评审
doi:10.1289/ehp.0211015
更新日期:2002-01-01 00:00:00
abstract:BACKGROUND:Aberrant histone acetylation has been observed in carcinogenesis and cellular transformation associated with arsenic exposure; however, the molecular mechanisms and cellular outcomes of such changes are poorly understood. OBJECTIVE:We investigated the impact of tolerated and toxic arsenic trioxide (As2O3) e...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.1408302
更新日期:2015-05-01 00:00:00
abstract::Studies of structure-activity relationships and molecular mechanisms of action are fundamental to our understanding of the harmful effects of chemicals on the environment and their more direct effects on human health. It is important to identify factors that determine toxicological effects of foreign chemicals in biol...
journal_title:Environmental health perspectives
pub_type: 杂志文章,评审
doi:10.1289/ehp.85615
更新日期:1985-09-01 00:00:00
abstract::High-dose boric acid (BA) exposure produces testicular lesions in adult rats characterized by inhibited spermiation (IS) that may progress to atrophy. In vivo and in vitro studies addressed possible mechanisms. In vivo, boron tissue disposition was examined, since no detailed data existed, and relevant boron concentra...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.94102s799
更新日期:1994-11-01 00:00:00
abstract::Haloalkane toxicity originates from attack on biological targets by reactive intermediates derived from haloalkane metabolism by a hemoprotein, cytochrome P-450. Carbon-centered radicals and their peroxyl derivatives are most likely involved. The reactions of iron porphyrin--a model for cytochrome P-450--with various ...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.856453
更新日期:1985-12-01 00:00:00
abstract:BACKGROUND:Although animal experiments have shown that cadmium exposure results in severe dental caries, limited epidemiologic data are available on this issue. OBJECTIVES:We aimed to examine the relationship between environmental cadmium exposure and dental caries in children 6-12 years of age. METHODS:We analyzed c...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.10947
更新日期:2008-06-01 00:00:00
abstract::Descriptions of endocrine disruption have largely been associated with wildlife and driven by observations documenting estrogenic, androgenic, antiandrogenic, and antithyroid actions. These actions, in response to exposure to ecologically relevant concentrations of various environmental contaminants, have now been est...
journal_title:Environmental health perspectives
pub_type: 杂志文章,评审
doi:10.1289/ehp.8045
更新日期:2006-04-01 00:00:00
abstract::Two remote maritime populations were evaluated for their biological exposure to organochlorines in 1989-1990. Because of their high intake of seafood, these two populations have high biological levels. One hundred nine breast milk samples from Inuit women from Arctic Québec were analyzed to determine levels of polychl...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.94102s1205
更新日期:1994-01-01 00:00:00
abstract::At picomolar concentrations, lead activates protein kinase C (PKC). This activation has been implicated in the neurotoxicity of lead. No prior study has evaluated the association of PKC activity with neurobehavioral function in humans. The purpose of this study was to determine whether PKC activity is associated with ...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.02110133
更新日期:2002-02-01 00:00:00
abstract::There is an increasing interest in the development and validation of biomarkers for use in biochemical/molecular epidemiological studies. Though the area of neurotoxicology has received much attention in the past several years, it still lags behind with regard to the development of biomarkers, particularly those of he...
journal_title:Environmental health perspectives
pub_type: 杂志文章,评审
doi:10.1289/ehp.96104s155
更新日期:1996-03-01 00:00:00
abstract:BACKGROUND:Biomass smoke is an important source of particulate matter (PM), and much remains to be discovered with respect to the human health effects associated with this specific PM source. Exposure to biomass smoke can occur in one of two main categories: short-term exposures consist of periodic, seasonal exposures ...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/ehp.11378
更新日期:2009-01-01 00:00:00
abstract:BACKGROUND:Cohort studies in North America and western Europe have reported increased risk of mortality associated with long-term exposure to fine particles (PM2.5), but to date, no such studies have been reported in China, where higher levels of exposure are experienced. OBJECTIVES:We estimated the association betwee...
journal_title:Environmental health perspectives
pub_type: 杂志文章
doi:10.1289/EHP1673
更新日期:2017-11-07 00:00:00
abstract::Biological monitoring of exposure to chemicals in the workplace is an important component of exposure assessment and prevention of adverse health effects. It should be employed in conjunction with ambient air monitoring to provide information on the absorbed dose of a chemical agent and the effect of all routes of exp...
journal_title:Environmental health perspectives
pub_type: 杂志文章,评审
doi:10.1289/ehp.97105s1105
更新日期:1997-02-01 00:00:00