The Antarctic Glaciological Data Center (AGDC) at NSIDC is pleased to announce the release of a new data set, Methyl Bromide Measurements in the Taylor Dome M3C1 Ice Core. The data set includes methyl bromide (CH3Br) measurements made on air extracted from 70 samples from the Taylor Dome M3C1 ice core. CH3Br was measured in air from the Taylor Dome ice core to reconstruct an atmospheric record for the Holocene (11-0 kyr B.P.) and part of the last glacial period (50-30 kyr B.P.).