Ground-level ozone is a growing problem in many cities, especially on the US west coast. As noted by the EPA, it causes respiratory problems like throat irritation, tightness in the chest, and increased occurrence of asthma attacks. That’s why, on October 1st2015, the National Ambient Air Quality Standard was lowered from 75 to 70 ppbn. This has implications for the fuel burnt in automobile and truck engines, and supports increased use of compressed natural gas (CNG.) CNG for vehicles is delivered through specially-designed filling stations, which are good applications for ChemTec flow monitors and excess flow valves.
Public transportation across the country has been using CNG for decades, with about 12-15% of public transit buses in the U.S. currently running on natural gas (either CNG or LNG – liquefied natural gas). That number is growing, with nearly one in five buses on order today slated to run on natural gas. States with the highest consumption of natural gas for transportation are California, New York, Texas, Georgia, Massachusetts and Washington, D.C.
Gas escaping from pipework needs to be detected quickly. Depending on the type of gas, the consequences range from merely wasteful to fatal. Leaking gas can be environmentally damaging, it can create an explosion risk, and it can even kill thousands of people, as happened in the Bhopal chemical plant disaster.
Every year more and more people voluntarily expose themselves to intense laser light. Lasers surround us at work and home, but they can be dangerous, so why would so many choose to do this? Two reasons: vanity and cost. Laser treatments, usually delivered in a clinic or spa setting, are an effective way of rejuvenating aging or damaged skin. They’re also cheaper than the more invasive alternatives. As a result, the market for these lasers is growing rapidly.
Mosquito Misting Systems
Summer is here, and with the long days and rising temperatures come the mosquitos. The top months for mosquito presence are June, July and August and no one is safe from mosquito borne illnesses like West Nile Virus. It’s time to protect your home and yourself, but how do you get rid of them?
When residents of a New York City neighborhood saw a tree disappearing down a hole in the summer of 2012, it was obvious something was amiss. Called to investigate, the Department of Environmental Protection determined the cause to be a collapsed 110 year-old sewer line buried 70 feet below the surface of the street.
Amusing as it may sound, such incidents are not uncommon. Most of our water and wastewater systems were built more than 50 years ago and they are aging. The American Society of Civil Engineers says $4.8 trillion in capital investment is needed over the next 20 years for repairs, and while the EPA estimates a more conservative $600bn and 20 years, there should be no doubt that this is a huge problem.