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ISA-Ozone (2013)

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  • 1.
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    Ambient air monitoring reference and equivalent methods

    Author: U.S. EPA
    (1976)
    Tagged With: Considered, 1st Draft, Atm/Exp Science, Considered

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  • 2.
    The "refereed" or "peer review" status of a journal comes from the Ulrichsweb Global Serials Directory (http://ulrichsweb.serialssolutions.com/), as supplied by the publisher. The term refers to the system of critical evaluation of manuscripts/articles by professional colleagues or peers. The content of refereed publications is sanctioned, vetted, or otherwise approved by a peer-review or editorial board. The peer-review and evaluation system is utilized to protect, maintain, and raise the quality of scholarly material published in serials. Publications subject to the referee process are assumed, then, to contain higher quality content than those that are not.
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    Article
    Ambient Air Monitoring Reference and Equivalent Methods: Designation of One New Equivalent Method (EPA Office of Research and Development)

    (2010)
    Tagged With: Considered, 1st Draft, Atm/Exp Science, Considered
  • 3.
    The "refereed" or "peer review" status of a journal comes from the Ulrichsweb Global Serials Directory (http://ulrichsweb.serialssolutions.com/), as supplied by the publisher. The term refers to the system of critical evaluation of manuscripts/articles by professional colleagues or peers. The content of refereed publications is sanctioned, vetted, or otherwise approved by a peer-review or editorial board. The peer-review and evaluation system is utilized to protect, maintain, and raise the quality of scholarly material published in serials. Publications subject to the referee process are assumed, then, to contain higher quality content than those that are not.
    Peer
    Reviewed
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    Article
    Part 58 - Ambient air quality surveillance: Appendix A - quality assurance requirements for state and local air monitoring stations (SLAMS), SPMs, and PSD Air Monitoring

    (1986)
    Tagged With: 1st Draft, Considered, Atm/Exp Science, Considered
  • 4.
    The "refereed" or "peer review" status of a journal comes from the Ulrichsweb Global Serials Directory (http://ulrichsweb.serialssolutions.com/), as supplied by the publisher. The term refers to the system of critical evaluation of manuscripts/articles by professional colleagues or peers. The content of refereed publications is sanctioned, vetted, or otherwise approved by a peer-review or editorial board. The peer-review and evaluation system is utilized to protect, maintain, and raise the quality of scholarly material published in serials. Publications subject to the referee process are assumed, then, to contain higher quality content than those that are not.
    Peer
    Reviewed
    Journal
    Article
    Long-term inhalable particles and other air pollutants related to mortality in nonsmokers

    Authors: Abbey, DE; Nishino, N; McDonnell, WF; Burchette, RJ; Knutsen, SF; Beeson, WL; Yang, JX
    (1999) American Journal of Respiratory and Critical Care Medicine 159:373-382.
    Minus Sign. Click to see only selected choices. Long-term ambient concentrations of inhalable particles less than 10 mum in diameter (PM10) (1973-1992) . . . Plus Sign. Click to expand choices. Long-term ambient concentrations of inhalable particles less than 10 mum in diameter (PM10) (1973-1992) and other air pollutants-total suspended sulfates, sulfur dioxide, ozone (O3), and nitrogen dioxide-were related to 1977-1992 mortality in a cohort of 6,338 nonsmoking California Seventh-day Adventists. In both sexes, PM10 showed a strong association with mortality for any mention of nonmalignant respiratory disease on the death certificate, adjusting for a wide range of potentially confounding factors, including occupational and indoor sources of air pollutants. The adjusted relative risk (RR) for this cause of death as associated with an interquartile range (IQR) difference of 43 d/yr when PM10 exceeded 100 mug/m3 was 1.18 (95% confidence interval (CI): 1.02, 1.36). In males, PM10 showed a strong association with lung cancer deaths-RR for an IQR was 2.38 (95% CI: 1.42, 3.97). Ozone showed an even stronger association with lung cancer mortality for males with an RR of 4.19 (95% CI: 1.81, 9.69) for the IQR difference of 551 h/yr when O3 exceeded 100 parts per billion. Sulfur dioxide showed strong associations with lung cancer mortality for both sexes. Other pollutants showed weak or no association with mortality.
    Tagged With: 1st Draft, 2nd Draft, 3rd Draft, Cited, Considered, Final, Health Effects
  • 5.
    The "refereed" or "peer review" status of a journal comes from the Ulrichsweb Global Serials Directory (http://ulrichsweb.serialssolutions.com/), as supplied by the publisher. The term refers to the system of critical evaluation of manuscripts/articles by professional colleagues or peers. The content of refereed publications is sanctioned, vetted, or otherwise approved by a peer-review or editorial board. The peer-review and evaluation system is utilized to protect, maintain, and raise the quality of scholarly material published in serials. Publications subject to the referee process are assumed, then, to contain higher quality content than those that are not.
    Peer
    Reviewed
    Journal
    Article
    The differential effect of ultraviolet light exposure on cataract rate across regions of the lens

    Authors: Abraham, AG; Cox, C; West, S
    (2010) Investigative Ophthalmology and Visual Science 51:3919-3923.
    Minus Sign. Click to see only selected choices. PURPOSE: In studies of cortical cataract, a severity score representing the area covered by cataract . . . Plus Sign. Click to expand choices. PURPOSE: In studies of cortical cataract, a severity score representing the area covered by cataract is often used as the primary outcome. However, additional disease information may exist in the spatial distribution of opacities. Further, it has been hypothesized that the lower nasal region of the lens is the most susceptible to damage by environmental ultraviolet light exposure. METHODS: In a sample of 107 lens images from the Salisbury Eye Evaluation Study, a digital cortical cataract grading algorithm was used to capture the location of opacities in binary images. These images were used to estimate the severity of cataract in 16 regions around the lens. The effect of individual cumulative lifetime ocular exposure to ultraviolet B light on cortical cataract risk for each lens region was examined, as estimated by using an empiric model and baseline occupation and leisure activities data, in a linear mixed-effects model. RESULTS: The lower nasal regions had the highest cortical cataract severity in both the right and left eyes. In the combined data, region 9 (the lower nasal corner of the lens) was estimated to have the highest severity. In an assessment of the high- and low-exposure ultraviolet light groups (dichotomized at the median exposure level), higher exposure had the most effect in the lower regions of the lens. CONCLUSIONS: These results indicate that there are regional lens differences in the association between cataract and exposure to ultraviolet light but that ultraviolet light may not entirely explain the variations in cortical cataract severity across the lens.
    Tagged With: Eco/Welfare, Considered
  • 6.
    The "refereed" or "peer review" status of a journal comes from the Ulrichsweb Global Serials Directory (http://ulrichsweb.serialssolutions.com/), as supplied by the publisher. The term refers to the system of critical evaluation of manuscripts/articles by professional colleagues or peers. The content of refereed publications is sanctioned, vetted, or otherwise approved by a peer-review or editorial board. The peer-review and evaluation system is utilized to protect, maintain, and raise the quality of scholarly material published in serials. Publications subject to the referee process are assumed, then, to contain higher quality content than those that are not.
    Peer
    Reviewed
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    Article
    Real-time ozone mapping using a regression-interpolation hybrid approach, applied to Tucson, Arizona

    Authors: Abraham, JS; Comrie, AC
    (2004) Journal of the Air and Waste Management Association 54:914-925.
    Minus Sign. Click to see only selected choices. Real-time ozone (O-3) maps, intended for public access and mass media, are generated from spatially . . . Plus Sign. Click to expand choices. Real-time ozone (O-3) maps, intended for public access and mass media, are generated from spatially interpolating (i.e., kriging) sparse monitoring data and are typically characterized by over-smoothed surfaces that inadequately represent local-scale spatial patterns (e.g., averaged over 1 km(2)). In this paper, a hybrid regression-interpolation methodology is developed to enhance the representation of local-scale spatiotemporal patterns with an application to Tucson, Arizona. The mapping of local patterns is enhanced with pre-interpolation regression modeling of local-scale deviation-from-mean variability, preserving variation in the monitor data that is ubiquitous across the modeling domain (i.e., the areal mean). The model is trained on several years of deviation-from-mean hourly O(3)(2)data, and predictor variables are developed using theoretically and empirically derived proxy regression variables. The regression model explains a significant proportion of the variation in the data (r(2) = 0.54), with an average error of 7.1 ppb. When augmented with the areal mean, the r(2) of the pre-interpolation model increases to 0.847. Model residuals are then spatially interpolated to the extents of the modeling domain. Final concentration estimate maps are the summation of areal mean, regression, and spatially interpolated surfaces, preserving absolute values at monitor locations.
    Tagged With: Atm/Exp Science, Considered
  • 7.
    The "refereed" or "peer review" status of a journal comes from the Ulrichsweb Global Serials Directory (http://ulrichsweb.serialssolutions.com/), as supplied by the publisher. The term refers to the system of critical evaluation of manuscripts/articles by professional colleagues or peers. The content of refereed publications is sanctioned, vetted, or otherwise approved by a peer-review or editorial board. The peer-review and evaluation system is utilized to protect, maintain, and raise the quality of scholarly material published in serials. Publications subject to the referee process are assumed, then, to contain higher quality content than those that are not.
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    Article
    UVB-induced conversion of 7-dehydrocholesterol to 1 alpha,25-dihydroxyvitamin D-3 (calcitriol) in cultured keratinocytes is upregulated by tumor necrosis factor-alpha

    Authors: Abraham, S; Lehmann, B; Knuschke, P; Meurer, M
    (2005)
    Minus Sign. Click to see only selected choices. UVB irradiation of cultured human keratinocytes induces both the conversion of 7-dehydrocholesterol . . . Plus Sign. Click to expand choices. UVB irradiation of cultured human keratinocytes induces both the conversion of 7-dehydrocholesterol (7-DHC) to calcitriol (1a,25(OH)2D3) and the release of tumor necrosis factor-a (TNF-a) in these cells. Calcitriol synthesis in human keratinocytes was reduced in the presence of a neutralizing polyclonal antibody directed against human TNF-a. On the other hand, we found a 1.7-fold higher stimulatory effect of UVB on liberation of TNF-a in cultured keratinocytes enriched with 7-DHC compared with irradiated cell cultures in absence of 7-DHC. These observations argue in favor of a synergetic relationship between generation of TNF-a and calcitriol in UVB irradiated keratinocytes. In addition, we found that TNF-a potently increases the conversion rate of vitamin D3 (cholecalciferol) to calcitriol this cell system. The UVB-triggered formation of both TNF-a and calcitriol in cultured keratinocytes as wavelength-, time- and dose-dependent. Maximum formation of TNF-a and calcitriol was found at 300nm and UVB doses of 30mJ/cm2. The enhancement of both, the formation of TNF-a and calcitriol in keratinocytes by UVB may be of relevance for regulation of growth and apoptosis in light-exposed epidermal cells and, in addition, may play a role in the UVB treatment of deseased skin, including psoriasis.
    Tagged With: Eco/Welfare, Considered
  • 8.
    The "refereed" or "peer review" status of a journal comes from the Ulrichsweb Global Serials Directory (http://ulrichsweb.serialssolutions.com/), as supplied by the publisher. The term refers to the system of critical evaluation of manuscripts/articles by professional colleagues or peers. The content of refereed publications is sanctioned, vetted, or otherwise approved by a peer-review or editorial board. The peer-review and evaluation system is utilized to protect, maintain, and raise the quality of scholarly material published in serials. Publications subject to the referee process are assumed, then, to contain higher quality content than those that are not.
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    Article
    Changes in airway permeability and responsiveness after exposure to ozone

    Authors: Abraham, WM; Delehunt, JC; Yerger, L; Marchette, B; Oliver, W, Jr
    (1984) Environmental Research 34:110-119.
    Minus Sign. Click to see only selected choices. The purpose of this investigation was to examine the relationship between airway responsiveness and . . . Plus Sign. Click to expand choices. The purpose of this investigation was to examine the relationship between airway responsiveness and the permeability of histamine through the airways in conscious sheep after exposure to ozone (O3). Airway responsiveness was assessed by measuring the change from baseline in mean pulmonary flow resistance following a controlled 2-min inhalation challenge with 1% histamine, containing 200 microCi/ml of [3H]histamine. The rate of appearance of the [3H]histamine in the plasma during inhalation challenge was used to estimate airway permeability. To perturb the airways, conscious sheep were exposed to either 0.5 or 1.0 ppm O3 for 2 hr via an endotracheal tube. Airway responsiveness and airway permeability were measured prior to and 1 day after exposure. In six sheep exposed to 0.5 ppm O3, increased airway responsiveness and airway permeability were observed 1 day after exposure. Four of seven sheep exposed to 1.0 ppm O3 had enhanced airway responsiveness and airway permeability, while the remaining three sheep showed corresponding decreases in airway responsiveness and airway permeability. Since the O3-induced directional changes in airway responsiveness paralleled the directional changes in airway permeability in both the positive and negative directions, it was concluded that changes in airway responsiveness to inhaled histamine following exposure to O3 may be related to concomitant changes in airway permeability to this agent.
    Tagged With: 2nd Draft, 3rd Draft, Cited, Considered, Final, Health Effects
  • 9.
    The "refereed" or "peer review" status of a journal comes from the Ulrichsweb Global Serials Directory (http://ulrichsweb.serialssolutions.com/), as supplied by the publisher. The term refers to the system of critical evaluation of manuscripts/articles by professional colleagues or peers. The content of refereed publications is sanctioned, vetted, or otherwise approved by a peer-review or editorial board. The peer-review and evaluation system is utilized to protect, maintain, and raise the quality of scholarly material published in serials. Publications subject to the referee process are assumed, then, to contain higher quality content than those that are not.
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    Reviewed
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    Article
    Nitrous acid in the urban area of Rome

    Authors: Acker, K; Febo, A; Trick, S; Perrino, C; Bruno, P; Wiesen, P; Möller; Wieprecht, W; Auel, R; Giusto, M; Geyer, A; Platt, U; Allegrini, I
    (2006) Atmospheric Environment 40:3123-3133.
    Minus Sign. Click to see only selected choices. Nitrous acid (HNO2) and a large variety of other components were simultaneously measured in the city . . . Plus Sign. Click to expand choices. Nitrous acid (HNO2) and a large variety of other components were simultaneously measured in the city centre of Rome (Italy) during the NITROCAT ground based field experiment in May/June 2001. The highest HNO2 concentrations were found under high-pressure conditions with high nocturnal atmospheric stability and high values of pollutants. After night time formation and accumulation up to 2 ppb HNO2 were observed. The measurements confirm that during the first hours after sunrise, when hydroxyl radical (OH) production rates from other sources (photolysis of ozone and formaldehyde (HCHO)) are slow, HNO2 photolysis is the most important primary OH source in the lowest part of the troposphere; up to 1-4 x 107 OH cm-3 s-1 were estimated for that time from this source. This contributes considerably to the initiation of the photochemistry for the day. The unexpected high daytime concentrations of few hundred ppt observed by DOAS as well as by the two in situ wet collection techniques (wet denuder/IC, coil sampling/HPLC) possibly influence ozone chemistry during the entire day. The heterogeneous on-surface production of HNO2 (and consequently of HNO3) provides also a new-type acidity formation influencing directly the biosphere and the materials. About 20% of the total nitrite was found on atmospheric aerosols. The HNO2 measurements agree well for the different in situ measurement techniques and the spatial integration DOAS simultaneously performed over several weeks in the real atmosphere and during reaction chamber experiments.
    Tagged With: 1st Draft, 2nd Draft, 3rd Draft, Atm/Exp Science, Cited, Considered, Final
  • 10.
    The "refereed" or "peer review" status of a journal comes from the Ulrichsweb Global Serials Directory (http://ulrichsweb.serialssolutions.com/), as supplied by the publisher. The term refers to the system of critical evaluation of manuscripts/articles by professional colleagues or peers. The content of refereed publications is sanctioned, vetted, or otherwise approved by a peer-review or editorial board. The peer-review and evaluation system is utilized to protect, maintain, and raise the quality of scholarly material published in serials. Publications subject to the referee process are assumed, then, to contain higher quality content than those that are not.
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    Article
    Follow-up of the Swiss Cohort study on air pollution and lung diseases in adults (SAPALDIA 2) 1991-2003: methods and characterization of participants

    Authors: Ackermann-Liebrich, U; Kuna-Dibbert, B; Probst-Hensch, NM; Schindler, C; Dietrich, DF; Stutz, EZ; Bayer-Oglesby, L; Baum, F; Brandli, O; Brutsche, M; Downs, SH; Keidel, D; Gerbase, MW; Imboden, M; Keller, R; Knopfli, B; Kunzli Nellweger, JP; Leuenberger, P; SALPADIA Team
    (2005) International Journal of Public Health 50:245-263.
    Minus Sign. Click to see only selected choices. OBJECTIVES: The Swiss Cohort Study on Air Pollution and Lung Diseases in Adults (SAPALDIA) was designed . . . Plus Sign. Click to expand choices. OBJECTIVES: The Swiss Cohort Study on Air Pollution and Lung Diseases in Adults (SAPALDIA) was designed to investigate the health effects from long-term exposure to air pollution. METHODS: The health assessment at recruitment (1991) and at the first reassessment (2001-3) consisted of an interview about respiratory health, occupational and other exposures, spirometry, a methacholine bronchial challenge test, end-expiratory carbon monoxide (CO) measurement and measurement for atopy. A bio bank for DNA and blood markers was established. Heart rate variability was measured using a 24-hour ECG (Holter) in a random sample of participants aged 50 years and older. Concentrations of nitrogen dioxide (NO2), sulphur dioxide (SO2), ozone (O3) and particulates in ambient air have been monitored in all study areas since 1991. Residential histories collected over the 11 year follow-up period coupled with GIS modelling will provide individual long-term air pollutant exposure estimates. RESULTS: Of 9651 participants examined in 1991, 8715 could be traced for the cohort study and 283 died. Basic information about health status was obtained for 8047 individuals (86% of alive persons), 6 528 individuals (70%) agreed to the health examination and 5 973 subjects (62%) completed the entire protocol. Non-participants in the reassessment were on average younger than participants and more likely to have been smokers and to have reported respiratory symptoms in the first assessment. Average weight had increased by 5.5 kg in 11 years and 28% of smokers in 1991 had quit by the time of the reassessment.
    Tagged With: Atm/Exp Science, Considered, Health Effects
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