Abbreviations, Unit Conversions, and Elemental Data - Application of Geochemical Tracers to Fluvial Sediment - page 137

Table A.3 Units of concentration (from Miller and Orbock Miller 2007)
Concentrations

(Volume) Concentrations (weight)

Unit Symbols Unit Symbols

Moles per liter mol/L or M Moles per kg mol/kg

Millimoles per liter mmol/L or mM Milliequavlents per kilogram meq/kg

Micromoles per liter mol/L or M Micrograms per kg or ppb g/kg or ppb

Micrograms per liter g/L Milligrams per kg or parts per million g/kg = ppm

Table A.4 Common conversions (from Miller and Orbock Miller 2007)
Distance/Length Area

= 9.280 × 10 − 2 m 2

1nm = 10 − 9 m

1ft 2

10 − 6 m 1m = 1 acre = 0.4046ha

10 − 3 m 1mi 2 2.5899km 2 1mm = =

10 − 2 m 1cm =

10 3 m

1km =

=

1mile 1.609 km or 1609.34 m

1in = 25.4mmor2.54cm
1 acre 0.4046ha

Flow/Volume

=

Mass/Weight

10 − 3 L 10 − 12 g

1ml = 1pg =

10 3 cm 3 10 − 12 g 1L = 1pg =

10 − 9 g 1gal = 3.785 L 1ng =

1g = 10 − 6 g

1 quart (US) = 0.9463 L

1ft 3 = 0.0283 m 3 1mg = 10 − 9 g

28.32 L/s or 0.0283 m 3 /s 10 3 g

1metricton

1cfs = 1kg =

10 3 kg

=

1 short ton = 2000 lbs or 907.184 kg

1lb 453.592 g

1troyoz

=

=

31.1035 g

Radioactivity Pressure

10 − 2 J/kg 10 5 Pa or 0.9869 atm

1 rad (absorbed dose) = 1bar =

10 − 12 Ci or 0.037 Bq 10 − 5 bar 1pCi = 1Pa =

10 10 dps 10 5 Pa 1curie = 3.7 × 1atm = 760 mm Hg or 1.01325 ×

1 becquerel (Bq) = 1.0 dps