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 Trans-Siberian railway on either side of Baikal was linked, and began to be used to transport goods and passengers. The Circum-Baikal was called the "golden buckle on the steel belt of Russia". Initially, only one track was built; from 1911 to 1914 the construction of a second track was undertaken, which increased capacity of the Circum-Baikal to 48 pairs of trains a day. In this stage of the construction of bridges and other engineering structures reinforced concrete was introduced as a new material. As part of these works, considerable attention was paid to the construction of stations and station towns.