[
    {
        "id": "authors:a0jsw-4b282",
        "collection": "authors",
        "collection_id": "a0jsw-4b282",
        "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:YUNjas80",
        "type": "article",
        "title": "Atmospheric Bromine and Ozone Perturbations in the Lower Stratosphere",
        "author": [
            {
                "family_name": "Yung",
                "given_name": "Y. L.",
                "orcid": "0000-0002-4263-2562",
                "clpid": "Yung-Y-L"
            },
            {
                "family_name": "Pinto",
                "given_name": "J. P.",
                "clpid": "Pinto-J-P"
            },
            {
                "family_name": "Watson",
                "given_name": "R. T.",
                "clpid": "Watson-R-T"
            },
            {
                "family_name": "Sander",
                "given_name": "S. P.",
                "orcid": "0000-0003-1424-3620",
                "clpid": "Sander-S-P"
            }
        ],
        "abstract": "The role of bromine compounds in the photochemistry of the natural and perturbed stratosphere has been reexamined using an expanded reaction scheme and the results of recent laboratory studies of several key reactions. The most important finding is that through the reaction BrO + CIO \u2192 Br + Cl + O2, there is a synergistic effect between bromine and chlorine which results in an efficient catalytic destruction of ozone in the lower stratosphere. One-dimensional photochemical model results indicate that BrO is the major bromine species throughout the stratosphere, followed by BrONO2, HBr, HOBr and Br. We show from the foregoing that bromine is more efficient than chlorine as a catalyst for destroying ozone, and discuss the implications for stratospheric ozone of possible future growth in the industrial and agricultural use of bromine. Bromine concentrations of 20 pptv (2 \u00d7 10^\u221211), as suggested by recent observations, can decrease the present-day integrated ozone column density by 2.4%, and can enhance ozone depletion from steady-state chlorofluoromethane release at 1973 rates by a factor of 1.1\u20131.2.",
        "doi": "10.1175/1520-0469(1980)037<0339:ABAOPI>2.0.CO;2",
        "issn": "0022-4928",
        "publisher": "American Meteorological Society",
        "publication": "Journal of the Atmospheric Sciences",
        "publication_date": "1980-02",
        "series_number": "2",
        "volume": "37",
        "issue": "2",
        "pages": "339-353"
    },
    {
        "id": "authors:dv865-k0n64",
        "collection": "authors",
        "collection_id": "dv865-k0n64",
        "cite_using_url": "https://resolver.caltech.edu/CaltechAUTHORS:20140924-094540365",
        "type": "article",
        "title": "Pressure and temperature dependence kinetics study of the NO + BrO \u2192 NO_2 + Br reaction. Implications for stratospheric bromine photochemistry",
        "author": [
            {
                "family_name": "Watson",
                "given_name": "R. T.",
                "clpid": "Watson-R-T"
            },
            {
                "family_name": "Sander",
                "given_name": "S. P.",
                "orcid": "0000-0003-1424-3620",
                "clpid": "Sander-S-P"
            },
            {
                "family_name": "Yung",
                "given_name": "Y. L.",
                "orcid": "0000-0002-4263-2562",
                "clpid": "Yung-Y-L"
            }
        ],
        "abstract": "The flash photolysis-ultraviolet absorption technique has been utilized to study the reactivity of nitric oxide\nwith BrO radicals over a wide range of pressure (100-700 torr) and temperature (224-398 K). Pseudo-first-order\nconditions were used in order to minimize complications caused by secondary kinetic processes. The reaction\nand its corresponding Arrhenius expression in units of cm^3 molecule^(-1) s^(-1) can be written \nNO + BrO \u2192 NO_2 + Br  \u0394H\u00ba_298 =  -17.0 kcal mol^(-1)\nk_1 = (1.28 \u00b1 0.23) x 10^(-11)exp((181 \u00b1 46)/T) (T = 224-398 K)\nThe results are compared with previous measurements, and atmospheric implications of the reaction are discussed.\nIt is shown that this reaction is important in controlling the ratios [BrO]/[Br] and [BrO]/[HBr] in the stratosphere\nbut that it does not affect the catalytic efficiency of BrO, in ozone destruction.",
        "doi": "10.1021/j100486a002",
        "issn": "0022-3654",
        "publisher": "American Chemical Society",
        "publication": "Journal of Physical Chemistry",
        "publication_date": "1979-11",
        "series_number": "23",
        "volume": "83",
        "issue": "23",
        "pages": "2936-2944"
    }
]