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Holcim (US) agrees to pay EPA penalty

The U.S. Environmental Protection Agency (EPA) has entered into a Combined Complaint and Consent Agreement (CCCA) with Holcim (US) Inc. (Holcim) in response to alleged violations of the Clean Water Act at its limestone and silica quarry and Portland cement plant located in Florence, Colo.

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State DOTs Use New Technologies to Reduce, Reuse and Recycle

By Mark S. Kuhar

Earth Day goes hand in hand with raising environmental awareness – and this year the American Association of State Highway and Transportation Officials is using the occasion to share the many ways our members are protecting the environment.

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John Deere on Final Tier 4/Stage IV Engine Technology Path

John Deere announced the continuation of its planned building-block approach to meet United States Final Tier 4 and European Union Stage IV emissions regulations. Final Tier 4/Stage IV regulations for off-highway diesel engines begin as early as 2013 for engines 55 kW (74 hp) and below.

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Diesel Exhaust and Lung Cancer

By Mark S. Kuhar

A study of more than 12,000 nonmetal miners in the United States has determined that heavy exposure to diesel exhaust increases risk of death from lung cancer. The study was carried out by researchers from the National Cancer Institute (NCI), part of the National Institutes of Health, and the National Institute for Occupational Safety and Health (NIOSH), part of the Centers for Disease Control and Prevention, both parts of HHS. The results were distributed in two papers on March 2, 2012, from the Journal of the National Cancer Institute.

Read more: Diesel Exhaust and Lung Cancer