Ammonia also disperses easily, since is lighter than air (its density is 60% that of air), and does not settle in low lying areas the way hydrogen sulfide and other dense odorous compounds do. These factors make ammonia odors more prevalent on-site than off-site.
Toyota started phasing EDRâs into certain of its vehicles in 2001, and all vehicles from the 2007. model year forward are equipped with these devices. [4] While the large majority of Toyota and. Lexus vehicles have EDRâs equipped to record both pre-crash and crash-phase data, several. models have units that do not capture any pre-crash data. By the end of 2010, all newly-. manufactured Toyota and Lexus vehicles were equipped with EDRâs that record both pre-crash. and crash-phase data.
Involved are. certain 2006-2008 model year Buick Lucerne; Cadillac DTS; HUMMER H2. vehicle; 2007-2008 model year Cadillac Escalade, Escalade ESV, Escalade EXT; Chevrolet. Avalanche, Silverado, Suburban, Tahoe; GMC Acadia, Sierra, Yukon, Yukon XL; Saturn. OUTLOOK vehicles; and 2008 model year Buick Enclave vehicles equipped with a heated.