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Trying to understand units in these papers. Parts per million or picometre?

Soolander · 2022-03-22 11:12:50

Came across these two papers investigating the concentration of Mercury in the Celtic Sea and Atlantic and the results are given in the units pM. For example, Low concentrations around 2 pM were found below 2000 m whatever the season (Cossa et al., 2004). Am I right in thinking this may be an old way of writing ppm (parts…

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22-03-2022 12:12pm

#1

Soolander

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Posts: 46

Came across these two papers investigating the concentration of Mercury in the Celtic Sea and Atlantic and the results are given in the units pM. For example, Low concentrations around 2 pM were found below 2000 m whatever the season (Cossa et al., 2004). Am I right in thinking this may be an old way of writing ppm (parts per million) or is it the unit of length (picometer)?

Paper 1: https://www.sciencedirect.com/science/article/pii/S0304420304001136?casa_token=su-Pp1vo2q8AAAAA:jgbyIym6v3E-sOCrNN15A2U2VGZJeQ0NGNihFF0AERs5cPX6HmeN8KZ_RFjl5d9MBAket2ky#BIB20

Paper 2: https://link.springer.com/article/10.1007/BF01189719

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#2 22-03-2022 12:25pm
GLaDOS

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picoMolar; m = metre, M = molar

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