正確區(qū)分我們環(huán)境中甲烷的各種來源，能夠有助于確定其在地層的來源，監(jiān)控垃圾填埋場和養(yǎng)殖場的逸散性甲烷排放物，或區(qū)分在濕地中產(chǎn)生和消耗甲烷的生化途徑。每一種甲烷源都具有13C與12C的特征比率。了解這一比率會有助于我們建立甲烷與特定本地源之間的聯(lián)系。Picarro G2132- i 能夠簡便快速地精確測量甲烷中的碳同位素比率以及總的甲烷濃度，同時還能同步獲得CO2和H2O濃度數(shù)據(jù)。
美國Picarro公司的C. W. Rella等將G2132-i、超聲風速儀和GPS裝載在車輛上組成移動試驗室，利用在美國猶他盆地開展測量實驗結果，提出了一種用于大氣甲烷排放來源的綜合方法。猶他盆地人口較少，除了石油和天然氣開采活動之外幾乎沒有其他甲烷和乙烷來源，因此是研究和驗證大氣甲烷和乙烷新測量方法的理想地點。本研究對23口天然氣井和6口油井分別進行了測量，同時對整個區(qū)域進行了采樣測量，最終測量結果表明盆地約85±7%的排放來自于天然氣開采。
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