freshweight

Growth inhibition study that experimentally exposed duckweed (Spirodela polyrhiza) to 50nm and 500nm plastic particles in concentrations ranging from 102 to 106 particles mL-1 for 120 hours and compared these to non-exposed control organisms, with 8 replicates per exposure treatment. The fresh weight was determined 0 hours and 120 hours of exposure to plastic particles by carefully patting the individual plants dry and subsequently transferring them to an analytical balance with a precision of four decimals.