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Meanings of parts per million in anglès

rus
миллионная доля
portuguès
parte por milhão
català
part per milió
espanyol
partes por millón

Unit of measurement based on number of particles.

        Related terms
        part per milió
        Sinònims
        Examples for "ppm"
        Examples for "ppm"
        1
        For diesel fuel, the limit for benzene was set at 350 ppm.
        The Irish Times
        2
        This brings the threshold of 450ppm closer sooner than had been anticipated.
        The Guardian
        3
        In contrast, 250 ppm Pb-treated males did not differ in these endpoints.
        Pubmed
        4
        The US Food and Drug Administration limits vomitoxin in food to 1 ppm.
        Reuters
        5
        Many locations rejected wheat with levels of 10 ppm and higher.
        Reuters
        1
        However, the precisions demonstrated so far have been lower than one part per million.
        Pubmed
        2
        Unfortunately he was also Swiss, which diluted the fervency thing to some minuscule part per million.
        Hula Done It?
        3
        Public drinking water in a concentration of one part per million can reduce dental decay by over 65 per cent.
        The Irish Times
        4
        The concentration would change from one part per million at one minute to half a part per million at two minutes.
        Radio NZ
        5
        Fluoridation, implemented as a means of reducing tooth decay, involves adding one part per million of fluoride to the water supply.
        Wired
        Usage of parts per million in anglès
        1
        Jim's voice said, They took air samples, measured in parts per million.
        The strain
        2
        And just how many parts per million carbon dioxide are too many?
        The Guardian
        3
        The United States allows 10 parts per million of DPA residues in food.
        Reuters
        4
        Atmospheric carbon dioxide has not dropped below 250 parts per million.
        Wired
        5
        Sometimes the data were reported in percentages and sometimes in parts per million.
        The Story of the Soil; from the Basis of Absolute Science and Re...
        6
        Transneft allows no more than 10 parts per million (ppm) of organic chlorides.
        Reuters
        7
        That corresponds to a rise in atmospheric carbon to 430 parts per million, or ppm.
        Reuters
        8
        He did not see things in parts per million.
        Reuters
        9
        Carbon dioxide now sits at 400 parts per million.
        News.com.au
        10
        Many types of fish struggle or die when oxygen is below 5 parts per million.
        Reuters
        11
        Five of these patients received prolonged treatment with NO at 20 parts per million or less.
        Pubmed
        12
        It is also continuing to rise at a rate of about two parts per million every year.
        The Irish Times
        13
        On the present course, it could be 800 parts per million by the end of the century.
        The Irish Times
        14
        He added: Already levels of CO2 have exceeded 400 parts per million.
        The Guardian
        15
        But installing systems large enough make a dent in all those parts per million is functionally impossible.
        Wired
        16
        Only a few parts per million of ammonia would be enough to offset the faint young sun.
        Wired