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Equivalent effective stratospheric chlorine (EESC) provides an estimate of the total effective amount of halogens (chlorine and bromine) in the stratosphere. It is calculated from emission of chlorofluorocarbon and related halogenated compounds into the troposphere (lower atmosphere) and their efficiency in contributing to stratospheric ozone depletion (ozone depletion potential, ODP), and by making assumptions on transport times into the upper atmosphere (stratosphere). This parameter is used to quantify man-made ozone depletion and its changes with time. As a consequence of the Montreal Protocol and its amendments phasing out ozone-depleting substances (ODS), the EESC reached maximum in the late 1990s and is now slowly decreasing.

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  • Equivalent effective stratospheric chlorine (EESC) provides an estimate of the total effective amount of halogens (chlorine and bromine) in the stratosphere. It is calculated from emission of chlorofluorocarbon and related halogenated compounds into the troposphere (lower atmosphere) and their efficiency in contributing to stratospheric ozone depletion (ozone depletion potential, ODP), and by making assumptions on transport times into the upper atmosphere (stratosphere). This parameter is used to quantify man-made ozone depletion and its changes with time. As a consequence of the Montreal Protocol and its amendments phasing out ozone-depleting substances (ODS), the EESC reached maximum in the late 1990s and is now slowly decreasing. (en)
  • El cloro estratosférico efectivo equivalente (CESE o EESC por sus siglas en inglés, equivalent effective stratospheric chlorine) proporciona una estimación de la cantidad efectiva total de halógenos (cloro y bromo) en la estratosfera. Se calcula a partir de la emisión de clorofluorocarbono y compuestos halogenados relacionados en la troposfera (atmósfera inferior) y su eficiencia para contribuir al agotamiento del ozono estratosférico (potencial de agotamiento del ozono u ODP por "ozone depletion potential"), y haciendo suposiciones sobre los tiempos de transporte a la atmósfera superior (estratosfera).​ Este parámetro se utiliza para cuantificar el agotamiento del ozono artificial y sus cambios con el tiempo. Como consecuencia del Protocolo de Montreal y sus enmiendas que eliminan gradualmente las sustancias que agotan el ozono (SDO, ozone-depleting substances), el CESE alcanzó el máximo a fines de los años 90 y ahora está disminuyendo lentamente. (es)
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  • Equivalent effective stratospheric chlorine (EESC) provides an estimate of the total effective amount of halogens (chlorine and bromine) in the stratosphere. It is calculated from emission of chlorofluorocarbon and related halogenated compounds into the troposphere (lower atmosphere) and their efficiency in contributing to stratospheric ozone depletion (ozone depletion potential, ODP), and by making assumptions on transport times into the upper atmosphere (stratosphere). This parameter is used to quantify man-made ozone depletion and its changes with time. As a consequence of the Montreal Protocol and its amendments phasing out ozone-depleting substances (ODS), the EESC reached maximum in the late 1990s and is now slowly decreasing. (en)
  • El cloro estratosférico efectivo equivalente (CESE o EESC por sus siglas en inglés, equivalent effective stratospheric chlorine) proporciona una estimación de la cantidad efectiva total de halógenos (cloro y bromo) en la estratosfera. Se calcula a partir de la emisión de clorofluorocarbono y compuestos halogenados relacionados en la troposfera (atmósfera inferior) y su eficiencia para contribuir al agotamiento del ozono estratosférico (potencial de agotamiento del ozono u ODP por "ozone depletion potential"), y haciendo suposiciones sobre los tiempos de transporte a la atmósfera superior (estratosfera).​ Este parámetro se utiliza para cuantificar el agotamiento del ozono artificial y sus cambios con el tiempo. Como consecuencia del Protocolo de Montreal y sus enmiendas que eliminan gradual (es)
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  • Cloro estratosférico efectivo equivalente (es)
  • Equivalent effective stratospheric chlorine (en)
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