Clean Air FreshAire Solutions of Southwest Florida Your Content Here

Some of the common concerns: Phase I ESA

Indoor Air Quality

There are many contaminants on a property that could require further testing and remediation. These are some of the common concerns with a property that may be addressed in a Phase I ESA. If the property used to contain or still contains underground storage tanks or above ground storage tanks, then there is a risk that they may have leaked over time and the soil and/or groundwater is contaminated with petroleum hydrocarbons.

  • Petroleum Hydrocarbons : Polynuclear aromatic hydrocarbons (PAHs) are often important contaminants of concern because of their chemical and toxicological properties. Composed of multiple aromatic rings, PAHs tend to be immobile and highly persistent in the environment, with relatively high bioaccumulation rates and toxicity. While PAHs occur naturally in crude oil and smoke and ash from forest fires, they are most often found as products of incomplete combustion, especially from incinerators. PAHs are often found at facilities formerly involved in creosote, coking, and wood preservative production, and at former manufactured gas plants that use coal as a feedstock. Exponent has conducted numerous risk assessments at these types of sites. Because of their accumulation in the food chain, PAHs usually drive the indirect risks associated with exposures via ingestion of soil, produce, fish, and animal products affected by emissions from hazardous waste combustion facilities. In conducting numerous human and ecological risk assessments for these facilities, we have determined that the methods used by EPA often overpredict concentrations in various media, and in many cases, we were able to get the EPA to modify its approach accordingly, thus reducing the estimated risk levels for PAHs.

  • Indoor Air Quality :  What are you breathing? It is a good question to ask ourselves. All of us face a variety of risks to our health as we go about our day-to-day lives. Driving in cars, flying in planes, engaging in recreational activities, and being exposed to environmental pollutants all pose varying degrees of risk. Some risks are simply unavoidable. The good news is indoor air pollution is one risk that you can do something about. Find out more below about what you are breathing and how to improve the indoor air around you.indoor-air-pollution
  • Lead : Lead  can be found in all parts of our environment – the air, the soil, the water, and even inside our homes. Much of our exposure comes from human activities including the use of fossil fuels including past use of leaded gasoline, some types of industrial facilities, and past use of lead-based paint in homes. Lead and lead compounds have been used in a wide variety of products found in and around our homes, including paint, ceramics, pipes and plumbing materials, solders, gasoline, batteries, ammunition, and cosmetics.Lead may enter the environment from these past and current uses. Lead can also be emitted into the environment from industrial sources and contaminated sites, such as former lead smelters. While natural levels of lead in soil range between 50 and 400 parts per million, mining, smelting, and refining activities have resulted in substantial increases in lead levels in the environment, especially near mining and smelting sites.

    When lead is released to the air from industrial sources or vehicles, it may travel long distances before settling to the ground, where it usually sticks to soil particles. Lead may move from soil into ground water depending on the type of lead compound and the characteristics of the soil.

    Federal and state regulatory standards have helped to minimize or eliminate the amount of lead in air, drinking water, soil, consumer products, food, and occupational settings.

  • Asbestos : Because of its fiber strength and heat resistance asbestos has been used in a variety of building construction materials for insulation and as a fire retardant. Asbestos has also been used in a wide range of manufactured goods, mostly in building materials (roofing shingles, ceiling and floor tiles, paper products, and asbestos cement products), friction products (automobile clutch, brake, and transmission parts), heat-resistant fabrics, packaging, gaskets, and coatings.

Asbestos Danger

  • Mold : Molds are part of the natural environment. Outdoors, molds play a part in nature by breaking down dead organic matter such as fallen leaves and dead trees, but indoors, mold growth should be avoided. Molds reproduce by means of tiny spores; the spores are invisible to the naked eye and float through outdoor and indoor air. Mold may begin growing indoors when mold spores land on surfaces that are wet. There are many types of mold, and none of them will grow without water or moisture.


 Many transfers of ownership of a commercial property are required by law to receive a Phase I Environmental Site Assessment.

Many banks will not approve a loan for the purchase of a property if a trained environmental professional has not reviewed the property for risk of environmental contaminants. This reduces the risk of the transaction and gives them a more reliable figure of the value of the property.



Posted on: August 28, 2015, by : FAS SWFL