Street-level emissions of methane and nitrous oxide from the wastewater collection system in Cincinnati, Ohio.

ABSTRACT: Recent studies have indicated that urban streets can be hotspots for emissions of methane (CH₄) from leaky natural gas lines, particularly in cities with older natural gas distribution systems. The objective of the current study was to determine whether leaking sewer pipes could also be a source of street-level CH₄ as well as nitrous oxide (N₂O) in Cincinnati, Ohio, a city with a relatively new gas pipeline network. To do this, we measured the carbon (δ¹³C) and hydrogen (δ²H) stable isotopic composition of CH₄ to distinguish between biogenic CH₄ from sewer gas and thermogenic CH₄ from leaking natural gas pipelines and measured CH₄ and N₂O flux rates and concentrations at sites from

SUBMITTER: Fries AE 

PROVIDER: S-EPMC6537879 | biostudies-literature | 2018 May

REPOSITORIES: biostudies-literature