To the stratosphere To tho stratosphere 50 HCHO OH abon MO 340 protocoction 1200 101 440 OH bien 1750.000 TCW OM 2500 TC) 20 We Surephon OCEANS 70 100 40/20 $ 25 80 22 140 300 1190 105 110,000 110.000 5000 20.00 90.000 Domestic Rice Landnes animals felds Industrias Onoda fon Transportaton Respiration Fossil fuel cortouston etc of NMHC combustion and detagus combustion Termites Natural Bomass Coal Sois decomposlion Respiration wotlands Industries buming menos CH4 Natural gas Vegetation Biomass Uptake Assimkaton Biomass Dissolution into hydrate and a buning by (photosynthesis) buming the oceans destabt aung soks and detarestation OCEANS AND lization leakae CONTINENTS OCEANS FRESHWATER (1,000,000 Tg(C)] Figure 8.1. The principal sources and sinks of carbon-containing gases in the atmosphere. The numbers alongside the arrows are estimates of average annual fluxes in Tg(C) per year, various degrees of uncertainty, some quite large, are associated with all of the Aluxes. The numbers in square brackets are the total amounts of the species in the atmosphere. Chemical Engineering Problema 1. Using the information given in Figure 8.1, estimate (a) the residence time of CH4 in the troposphere with respect to influxes, and (b) the annual percentage increase in the amount (and therefore the concentration) of CH4 in the troposphere. (Ctrl)