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Thursday, July 30, 2020 | History

2 edition of Nitrogen dioxide, time-concentration model to predict acute foliar injury found in the catalog.

Nitrogen dioxide, time-concentration model to predict acute foliar injury

Walter Webb Heck

Nitrogen dioxide, time-concentration model to predict acute foliar injury

by Walter Webb Heck

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Published by Environmental Protection Agency, Office of Research and Development, [Office of Air, Land, and Water Use], Corvallis Environmental Research Laboratory, for sale by the National Technical Information Service in Corvallis, Or, Springfield, Va .
Written in English

    Subjects:
  • Nitrogen compounds -- Environmental aspects.,
  • Plants, Effect of gases on.

  • Edition Notes

    Statementby Walter W. Heck, Agricultural Research, Science and Education Administration, United States Department of Agriculture, and Botany Department, North Carolina State University, and David T. Tingey, Corvallis Environmental Research Laboratory, United States Environmental Research Laboratory.
    SeriesEcological research series ; EPA-600/3-79-057
    ContributionsTingey, David T., United States. Science and Education Administration. Agricultural Research., North Carolina State University. Dept. of Botany., Corvallis Environmental Research Laboratory.
    The Physical Object
    Paginationvi, 17 p. ;
    Number of Pages17
    ID Numbers
    Open LibraryOL18014795M

    Ozone. Time-concentration model to predict acute foliar injury. Pp. — in Proceedings of the 2nd International Clear Air Congress, H.M. Englund and W.T. Beery, eds. Lefohn, A.S., and V.A. Mohnen. The characterization of ozone, sulfur dioxide, and nitrogen dioxide for selected monitoring sites in the Federal Republic of Germany. 10 11 Characteristics of Foliar Symptoms 12 There is no single type of symptom that is distinctive for NO2-induced foliar injury 13 (National Research Council, ), and the types induced by NO2 are similar to those 14 induced by other air pollutants, such as sulfur dioxide (SO2), hydrogen fluoride (HP), or 15 ozone (O3) (Matsushima.

    The Effect of Phosphorus in Nitrogen Fixation in Legumes Reem M Hussain* Department of Crop Field, Huazhong Agricultural University, PR China Submission: Ma ; Published: Ma *Corresponding author: Reem M Hussain, Department of Crop Field, State Key Lab of Agriculture Microbiology, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan File Size: KB. It has recently been demonstrated that foliar nitrogen is positively correlated with surface albedo over a broad range of plant functional types. However, the mechanism(s) driving the nitrogen-albedo relationship remain elusive. This study investigated leaf spectral properties from three deciduous species subjected to either nitrogen or CO2 fertilization and compared results to measured Author: Haley F Wicklein.

    Air pollution discussions often focus on how a particular part of the troposphere or stratosphere deviates in quality from a norm. Such deviations vary by scale: air pollution influencing a single-cell organism may be a few cubic nanometers (nm 3) in volume, whereas the atmosphere influencing and being influenced by biome shift encompasses many cubic kilometers (km 3). Nitrogen dioxide (NO2) is a ubiquitous atmospheric pollutant due to the widespread prevalence of both natural and anthropogenic sources, and it can be a respiratory irritant when inhaled at elevated concentrations. Evidence for health effects of ambient NO2 derives from three types of studies: observational epidemiology, human clinical Cited by:


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Nitrogen dioxide, time-concentration model to predict acute foliar injury by Walter Webb Heck Download PDF EPUB FB2

Taylor and Maclean () recognized the increased sensitivity of plantsto nitrogen dioxide caused by low light intensity. They reported that 2-hrexposures of sensitive plants to 3 ppm nitogen dioxide under low light condi-tions caused as much injury as 6 ppm in light equivalent to full sunlight.

Additional Physical Format: Online version: Heck, Walter Webb, Nitrogen dioxide, time-concentration model to time-concentration model to predict acute foliar injury book acute foliar injury. Corvallis, Or. Get this from a library. Nitrogen dioxide, time-concentration model to predict acute foliar injury.

[Walter Webb Heck; David T Tingey; United States. Science and Education Administration. Agricultural Research.; North Carolina State University. Department of. Nitrogen dioxide, time-concentration model to predict acute foliar injury Walter Webb Heck,David T. Tingey,United States. Agricultural Research Service,North Carolina State University.

Nitrogen dioxide, time-concentration model to predict acute foliar injury / By Walter Webb Heck, David T. Tingey, Corvallis Environmental Research Laboratory., North Carolina State University. Dept. of Botany. and United States. Agricultural Research Service. Abstract.

Assuming that the internal loss of the toxic agent is proportional to its Models of air pollutant exposure and vegetation response concentration and the agent is replenished by diffusion into the leaf, then eqn (b) may be rewritten as: r -- 1 - af [-O3(t)~]] dt (c) Jo r(t) + b where: r = sum of resistance to 03 diffusion; [] = external ozone con- centration, which is time dependent and a1, b = constants Cited by: The magnitude and impact of gaseous nitrogen dioxide (NO 2) directly entering the leaves were investigated using foliar nitrogen isotopic composition (δ 15 N) values in tomato (Lycopersicon esculentum) and tobacco (Nicotiana tabacum).

Using a hydroponics–fumigation system, 15 NO 2 (20 and 40 ppb) was supplied to shoot systems and (50 and µM) was supplied to root by:   MBA Ozone. Time-Concentration Model to Predict Acute Foliar Injury MBB Inhibition of Lipid Metabolism in Chloroplasts by Ozone MBC Ozone Tolerence of Petunia Leaves as Relate to their Ascorbic Acid Concentration MBD Recent Results for Recognition and Monitoring of Air Pollutants with the Aid of PlantsBook Edition: 1.

select mb 33a - ozone. time-concentration model to predict acute foliar injury: ozone. une modele de temps-concentration a predire le foliaire dommage aigu. Chapter 10 Effects of sulfur dioxide on vegetation: critical levels Sulfur dioxide High concentrations of sulfur dioxide can produce acute injury in the form of foliar necrosis, even after relatively short duration exposure.

However, such effects are far less important in the combined effect of nitrogen dioxide and sulfur dioxide (8). Online Books by. Corvallis Environmental Research Laboratory. Books from the extended shelves: Nitrogen dioxide, time-concentration model to predict acute foliar injury / (Corvallis, Or.: Environmental Protection Agency, Office of Research and Development, [Office of Air.

Walter W. Heck's 78 research works with 2, citations and 1, reads, including: Design and Performance of a Large, Field Exposure Chamber to Measure Effects of Air Quality on Plants. Selected plant species were exposed to two nitrogen dioxide concentrations chosen to produce threshold and severe injury at five time periods ranging from to 7 h.

Importance of Foliar Nitrogen Concentration to Predict Forest Productivity in the Mid-Atlantic Region Yude Pan, John Horn, Jennifer Jenkins, and Richard Birdsey ABSTRACT. To assess what difference it might make to include spatially defined esti- mates of foliar nitrogen in the regional application of a forest ecosystem model (PnET-II), we.

Filed under: Plants -- Effect of gases on. Nitrogen dioxide, time-concentration model to predict acute foliar injury / (Corvallis, Or.: Environmental Protection Agency, Office of Research and Development, [Office of Air, Class-book of botany [electronic resource]. Responses of photosynthesis and carbohydrate‐partitioning to limitations in nitrogen and water availability in field‐grown Nutrient‐stress reduced total foliar nitrogen, foliar chlorophyll, leaf nitrogen relationship at ambient and elevated atmospheric carbon dioxide: a meta‐analysis, Global Change Biology, 5, 3, (   The dominant conceptual model of nitrogen (N) saturation in forests predicts the temporal patterns of key N cycling indicators as an initially N-limited forest is progressively enriched in N.

We present the results from a long-term N addition experiment in an oak forest in southeastern New York State, USA, which do not conform to the predictions of the conceptual model in several by: Pak. Bot., 50(6):NITROGEN FERTILIZER ALLEVIATED NEGATIVE IMPACTS OF NACL ON SOME PHYSIOLOGICAL PARAMETERS OF WHEAT MUHI ELDEEN HUSSIEN IBRAHIM1, 2, XINKAI ZHU3, GUISHENG ZHOU*1, ADAM YOUSIF ADAM ALI1,4, IRSHAD AHMAD1 AND GAFAR ALI FARAH 2 1Joint International Research Laboratory of Agriculture and Agri-Product Safety of the.

Injury Time, following Sentenced to Life, finds James with more time on the clock than he had anticipated, and all the more determined to use it wisely – to capture the treasurable moment, and think about how best to live his remaining days while the sense of his own impending absence grows all the more powerfully acute.

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Current regulation aimed at reducing inorganic atmospheric fine particulate matter (PM) is focused on reductions in sulfur dioxide (SO2) and oxides of nitrogen (NOx ≡ NO + NO2); however, controls on these pollutants are likely to increase in cost and decrease in effectiveness in the future.

A supplementary strategy is reduction in ammonia (NH3) emissions, yet an evaluation of Cited by: October No SuDoc Number Title Year Item Number Internet Access; 1: Nitrogen dioxide, time-concentration model to predict acute foliar injury / I (online) Military Injury Surgical Systems Integrated Operationally Nationwide to Achieve Zero Preventable Deaths Act: report (to accompany H.R.

) (including cost estimate.Radish, Raphanus sativus L., plants were exposed daily to ozone, O₃, or nitrogen dioxide, NO₂, or sequences of the two pollutants.

The exposure profiles for both gases approximated sine waves with peak concentrations of ppb (parts per billion by volume; n1 l ⁻1). In the case of O₃, this is close to the reported threshold for adverse effects while with NO₂ it is below the.