Phrase ash emission

• On 29 and 31 August the Washington VAAC reported discrete ash emissions.
• The explosive ash emissions stopped during the afternoon of 14 August.
• The volcano belched a series of ash emissions from late 1994 to early 1995.
• This device further reduced the ash emissions of the furnace and power plant smokestack emissions.
• Ash emissions ceased on 25 July.
• However, both Trenton units have electrostatic precipitators designed to capture 99 % of fly ash emissions from coal burning.
• Mount Kupreanof displays extremely strong fumarole activity and its latest eruption in 1987 produced minor steam and ash emission.
• "Earthquakes are still occurring frequently, and steam and ash emissions and small explosion are likely to occur, " the USGS said.
• The active Tavurvur volcano was being monitored by the Rabaul Vulcanology Observatory after ash emissions and rumblings since Friday, Anderson said.
• Concerns about the effects of periodic ash emissions from nearby Pinatubo Volcano on aircraft safety, however, discouraged officials from pursuing the proposals.
• The start of the match was delayed one day due to air travel disruptions caused by the volcanic ash emissions from Eyjafjallaj鰇ull.
• When the smoke and ash emissions stop, that indicates the conduit has finally closed and then the energy will release violently in eruption,
• She said there would also be a 90 percent drop in sulfur dioxide emissions and complete elimination of particulate and coal ash emissions.
• Seismic activity and ash emission continued to build over the following weeks, and in January 2011 a hotspot was recorded, indicating the presence of lava.
• The last eruption of the mountain was in May 1980, during which ash emissions reaching a height of one kilometer were observed from a fishing vessel.
• Members of the group work in a range of research areas including volcanology, toxicology, and public health with the goal of determining the health effects of volcanic ash emissions.
• The combination of gas and ash emission from Redoubt since the beginning of the eruption has on occasion resulted in a brownish-yellow volcanic haze in the Cook Inlet region.
• The filters will lead to a reduction in ash emissions from Unit 7 by roughly 99.9 %, equivalent to the saving of up to more than 10, 000 tons of emissions per year.
• Ash emissions and ashfall continued in areas to the NW . Visibility remained poor in Rabaul town ( 3 5 km NW of Tavurvur ) due to ash made airborne by the passage of moving vehicles.
• The Coso Volcanic Field shows stunning examples of volcanic activity, probably last active 30, 000 to 40, 000 years ago, but ash emission and small cone building episodes may be Holocene ( > 10, 000 years ) in age.