2010 eruptions of Mount Merapi possible widening of the exclusion zone was considered to have the potential to affect the availability of departure options. It was noted that there had been a deterioration in air quality in Yogyakarta from ash falling on the city. It was cautioned that volcanic ash could cause breathing difficulties, particularly for people with chronic respiratory ailments such as asthma, emphysema, or bronchitis. The Indonesian Social Welfare Minister, Salim Segaf Al-Jufri announced on 19 November that the government planned to end the emergency response period for the Mount Merapi eruption disaster on 24 November. "We will maintain the emergency response period
Circum-Baikal Railway in operation: Kultuk, Maritui, Ulanovo, and Baikal, with one section of double track at 137 km. The Circum-Baikal contains thirty-eight tunnels with a total length of 9063 m (the longest of them, a tunnel through cape Polovinnyj, is 777.5 m long). There are also 15 stone galleries with a total length of 295 m and 3 ferro-concrete galleries with apertures, 248 bridges and viaducts, and 268 retaining walls. The Circum-Baikal has no equal in Russia as to the richness of engineering constructions. The tunnels and stone galleries of the Circum-Baikal are unique in that they were constructed atypically and have