Based on our extrapolation, the contribution of coastal and estuarine environments to marine NMHCs emission budgets could be disproportionately high in comparison to their size, despite only accounting for a minor fraction of the global ocean. The absence of correlations between NMHCs and environmental variables also suggested that the control of NMHCs could be more complex in estuarine systems. Multiple processes including phytoplankton release, photochemical production, riverine input might contribute to this variability. NMHCs concentrations and fluxes varied largely between seasons. We investigated the annual concentrations and fluxes of five NMHCs in Jiaozhou Bay, a typical anthropogenically impacted estuary on the east coast of North China. The emissions of NMHCs from marine waters are a significant source in the atmosphere. (Liuyang) China Fireworks Festival they also attended the work report of IFA and. Non-methane hydrocarbons (NMHCs) are abundant volatile organic compounds in the atmosphere and play an important role in atmospheric chemistry. (General Manager of Guangzhou Gunflak Import/ Export Corp), Chinese. Although coastal and estuarine environments only account for a minor fraction of the global ocean (0.26%–0.39%), NMHC emissions from these areas could influence regional atmospheric chemistry and may be relatively important for global budgets (ethane, 1.70% ethylene, 1.54% propane, 1.29% propylene, 0.87% isoprene, 3.17%). The tradition of moon cakes can be traced back to the Southern Song dynasty (11271279 BC), even though, the moon cakes were not round at that time.
#MIDAUTUMN FESTIVAL IN GUANG AL IN TOISHAN CHINA FULL#
The cakes, typically round, symbolizing the full moon, are presented as gifts to relatives and friends. These results indicated that the control of NMHCs could be more complex in dynamic and anthropogenically impacted estuarine systems, which could be a result of multiple processes involving phytoplankton release, photochemical production, riverine input, and so forth. The Mid-Autumn Festival is also known as the Mooncake Festival. The correlations between NMHCs and environmental variables such as chlorophyll a (Chl- a), dissolved organic carbon (DOC) were ambiguous, and principal component analysis (PCA) suggested nutrients contributed significantly to total variation. NMHCs concentrations varied largely between seasons and higher abundance were observed in summer. The concentrations of other NMHCs were lower the average concentrations for ethane, propane, propylene, and isoprene were 87.0 ± 49.0, 65.7 ± 22.9, 127.4 ± 77.8, and 60.5 ± 47.1 pmol L −1, respectively. Ethylene is the most abundant NMHCs, with an annual average concentration of 487.7 ± 239.3 pmol L −1. Here, we investigated the annual variations of NMHCs concentrations and fluxes (i.e., ethane, ethylene, propane, propylene, and isoprene) in the semi-enclosed shallow waters of Jiaozhou Bay from September 2016 to August 2017. Mid-Autumn Festival is a big event in the country, also called Thanksgiving Day by local people. Non-methane hydrocarbons (NMHCs) play an important role in atmospheric chemistry and the ocean is a source of NMHCs in the atmosphere.
0 kommentar(er)
