M ethanogenium

Abstract

Me.tha.no.ge'ni.um. N.L. neut. n. methanum, methane; N.L. suff. ‐genes (from L. v. gigno ) producing; N.L. neut. n. Methanogenium , a methane producer. Euryarchaeota / Methanomicrobiales / Methanomicrobiales / Methanomicrobiaceae / Methanogenium Irregular cocci occurring singly or in pairs, usually 0.5–2.6 µm in diameter. Gram‐stain‐negative. Does not form spores. No motility observed, although some strains are flagellated. Strictly anaerobic. Chemolithotrophic, utilizing H 2 or sometimes formate and primary or secondary alcohols as electron donors, reducing carbon dioxide to methane. Growth factors required. NaCl generally required or stimulatory for growth. Optimal temperature range 15–35 ° C; optimal pH 6.0–7.9. Draft‐genome sequences have been determined for both M. cariaci JCM 10550 and M. frigidum Ace‐2 T . Occur in cold anaerobic marine or freshwater sulfate‐depleted sediments. DNA G + C content (mol%) : 47–52. Type species : Methanogenium cariaci Romesser, Wolfe, Mayer, Spiess and Walther‐Mauruschat 1981, 216 VP (Effective publication: Romesser, Wolfe, Mayer, Spiess and Walther‐Mauruschat 1979, 152).

Validation of CO dispersion model due to the road position on the dominant wind direction on transport sector

“…The amount of pollutant concentration depends on wind speed, wind direction, atmospheric boundary layer, solar radiation and temperature [14][15]. Beside that, pollutant concentration also effected by dynamics of wind strength and wind direction [16]. According to [8], wind coming angle directions (α) influence the amount of CO concentration in the roadside area.…”