The Docklands Light Railway (DLR) was extended to Stratford in 1987, and to Stratford International in 2011, with services to Poplar, Canary Wharf, Lewisham, London City Airport, the Excel Centre, Beckton and Woolwich Arsenal.
There are two main categories of asbestos: amphibole asbestos and serpentine asbestos. The serpentine asbestos group contains one type of asbestos, chrysotile. The amphibole asbestos group consists of several types of asbestos: amosite, crocidolite, anthophyllite, tremolite, and actinolite.
Definition: Perlite is a form of volcanic glass that is mined all over the world. Horticultural perlite is made by exposing perlite to heat, which causes the trace water contained in the perlite to expand, popping the perlite like popcorn. The result is a very lightweight, white stone-like substance.