Environmental Industry Articles

Air & Climate

SO2 NAAQS Implementation: The Great American Update

SO2 NAAQS Implementation: The Great American Update

Since the 1-hour sulfur dioxide (SO2) National Ambient Air Quality Standard (NAAQS) became effective in August 2010, ALL4 has been tracking it every step of the way.  Its implementation has proven to be chaotic at times and quiet at ...


Energy & Renewables

Honolulu’s LED Lamps: Cutting on Carbon and Trimming Tax

Honolulu’s LED Lamps: Cutting on Carbon and Trimming Tax

Honolulu, the Hawaiian capital’s energy costs rank tenth on the pollution lists. In an attempt to reduce this figure, the city mayor wants to install solar street lamps which will help cut tax and Greenhouse Gas emissions. Hawaii ...


Environmental Management

Cultivating the next generation of sustainability leaders

Cultivating the next generation of sustainability leaders

International corporate volunteerism gives future leaders real-life experience facing challenges in emerging markets and could create self-perpetuating sustainable businesses ntroduced by John Elkington two decades ago, the “triple ...


Health & Safety

Health and safety at work: companies shift their attitude

Health and safety at work: companies shift their attitude

From reaction to incidents to the development of a corporate culture: the approach to occupational health and safety is changing all over the world; managing health & safety at work is crucial to North Americans to preserve the ...


Monitoring & Testing

Ultrasonic Testing For Non Destructive Testing

Ultrasonic Testing For Non Destructive Testing

Ultrasonic Testing or UT as its known has programs in a wide range of sectors, from aerospace, automobile, to substance, oil, large storage space, and power creation and overseas. UT is aspect of a selection of techniques known as NDT (Non ...


Soil & Groundwater

The Future For Fracking

The Future For Fracking

Summary Fracking is an essential technology to meet growing global demand for oil and gas. Fracking has become the "F" word, because it is very water-intensive, and has potential negative impacts on the environment. The future of ...


Waste & Recycling

California Refuse Recycling Council: Advocating for the Next Generation of Solid Waste Legislation

California Refuse Recycling Council:  Advocating for the Next Generation of  Solid Waste Legislation

Created out of a need for waste haulers to respond to government decisions, the CRRC has grown to a pivotal organization in California that has a hand in influencing the waste industry’s legislation issues. In the 1950s when several ...


Water & Wastewater

Using respirometry for energy optimization in a nitrifying biological wastewater treatment system

Using respirometry for energy optimization in a nitrifying  biological wastewater treatment system

ABSTRACT Many wastewater treatment plants use more than 50% of their total energy budget in the aeration basin and, when nutrient removal is included in the activated sludge process, it is very common that the majority of oxygen uptake ...


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