Human Carcinogen Found in Drinking Water Near Gas Drilling Ops
The U.S. Environmental Protection Agency's (EPA) detection of arsenic, a known human carcinogen, barium and other contaminants in the well water of homes near natural gas drilling operations in Dimock Township, Pa., should prompt a nationwide investigation of drilling-linked water pollution.
"EPA and other officials must move quickly to ensure these families have an adequate source of clean water," said Dusty Horwitt, senior counsel with Environmental Working Group (EWG). "This finding confirms what Dimock residents have said for months—that the Pennsylvania Department of Environmental Protection should have never allowed Cabot to end deliveries of clean water."
Last month, EWG published a report called Gas Drilling Doublespeak that found that Dimock residents, among other people in gas-rich areas, were not warned of risks to their water supplies when they were approached to lease their land for drilling.
EPA officials in Philadelphia announced they would deliver clean water to the four affected households and conduct broader testing at about 60 more homes in south-central area Susquehanna County. Cabot Oil & Gas Corp., the Houston-based company that began drilling for gas in the area in 2008, delivered water to the households under a 2010 consent agreement but stopped Nov. 30 after state regulators determined that Cabot had met its obligations.
According to an EPA action memo, agency scientists found the four households’ well water contaminated with arsenic and other hazardous substances “at levels that present a public health concern.” Some of these “are not naturally found in the environment,” EPA officials said, and may have been released by drilling activities. Among the toxic substances found in the well water, according to the EPA:
Arsenic, classified by the US government and World Health Organization as a known human carcinogen, an element sometimes found in “elevated concentrations” in groundwater because of drilling;
- Barium, a common constituent of drilling fluids; long-term ingestion at high levels can cause kidney damage
- Phthalates, a synthetic plastic chemical and probable human carcinogen, according to EPA
- Glycol compounds common in drilling fluids and associated with damage to kidneys, the nervous system, lungs, heart, testicular damage and anemia
- Manganese, an naturally occurring element that can damage the nervous system at high levels
- Phenol, found in some drilling fluids; at high levels can cause irregular heartbeat, liver damage and skin burns
- Sodium, compounds found in some drilling fluids, at high levels can cause high blood pressure
Federal officials said that although the investigation has not been completed, they have concluded, based on samplings to date, that a “chronic health risk exists” for the wells in question.
"These results also show that the families ultimately need a permanent source of healthy water, which the state has so far failed to deliver," Horwitt said. "Cabot should bear the cost of providing this, not the taxpayers."
For more information, click here.
Environmental Working Group is a nonprofit research organization based in Washington, D.C. that uses the power of information to protect human health and the environment.
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By Harry Kretchmer
By 2030, almost a third of all the energy consumed in the European Union must come from renewable sources, according to binding targets agreed in 2018. Sweden is helping lead the way.
Sweden is a world leader in renewable energy consumption. Swedish Institute/World Bank
Naturally Warm<p>54% of Sweden's power comes from renewables, and is helped by its geography. With plenty of moving water and 63% forest cover, it's no surprise the <a href="https://sweden.se/nature/energy-use-in-sweden/#" target="_blank">two largest renewable power sources</a> are hydropower and biomass. And that biomass is helping support a local energy boom.</p><p>Heating is a key use of energy in a cold country like Sweden. In recent decades, as fuel oil taxes have increased, the country's power companies have turned to renewables, like biomass, to fuel local 'district heating' plants.</p><p>In Sweden these trace their <a href="https://www.sciencedirect.com/science/article/pii/S0360544217304140#fig3" target="_blank">origins back to 1948</a>, when a power station's excess heat was first used to heat nearby buildings: steam is <a href="https://www.sciencedirect.com/topics/engineering/district-heating-system" target="_blank">forced along a network of pipes</a> to wherever it's needed. Today, there are around 500 district heating systems across the country, from major cities to small villages, providing heat to homes and businesses.</p><p>District heating used to be fueled mainly from the <a href="https://www.sciencedirect.com/science/article/pii/S0360544217304140" target="_blank">by-products of power plants</a>, waste-to-energy plants and industrial processes. These days, however, Sweden is bringing more renewable sources into the mix. And as a result of competition, this localized form of power is now the country's<a href="https://www.sciencedirect.com/science/article/pii/S0360544217304140#fig3" target="_blank" rel="noopener noreferrer"> home-heating market leader.</a></p>
Sweden is using smart grids to turn buildings into energy producers. Huang et al/Elsevier
Energy ‘Prosumers’<p>But Sweden doesn't stop at village-level heating solutions. Its new breed of energy-generation takes hyper-local to the next level.</p><p>One example is in the city of Ludivika where 1970s flats <a href="https://www.buildup.eu/sites/default/files/content/transforming-a-residential-building-cluster-into-electricity-prosumers-in-sweden.pdf" target="_blank">have recently been retrofitted with the latest smart energy technology</a>.</p><p>48 family apartments spread across 3 buildings have been given photovoltaic solar panels, thermal energy storage and heat pump systems. A micro energy grid connects it all, and helps charge electric cars overnight.</p><p>The result is a cluster of 'prosumer' buildings, producing rather than consuming enough power for 77% of residents' needs. With <a href="http://www.diva-portal.org/smash/get/diva2:1232060/FULLTEXT01.pdf" target="_blank" rel="noopener noreferrer">high levels of smart meter usage</a>, it's a model that looks set to spread across Sweden.</p>
<div id="d7bf9" class="rm-shortcode" data-rm-shortcode-id="8757b138d5570bec9d6aad18074a429a"><blockquote class="twitter-tweet twitter-custom-tweet" data-twitter-tweet-id="1273556364263071744" data-partner="rebelmouse"><div style="margin:1em 0">Read more about Western Harbour and book a visit: https://t.co/ujSmVs9rNK 🏡🌳🌊 https://t.co/C5PuPziqIM</div> — Smart City Sweden (@Smart City Sweden)<a href="https://twitter.com/SmartCitySweden/statuses/1273556364263071744">1592474473.0</a></blockquote></div>
Scaling Up<p>A recent development by E.ON in Hyllie, a district on the outskirts of Malmö, southern Sweden, <a href="https://www.eonenergy.com/blog/2019/February/sweden-smart-city" target="_blank">has scaled up the smart grid principle</a>. Energy generation comes from local wind, solar, biomass and waste sources.</p><p>Smart grids then balance the power, react to the weather, deploying extra power when it's colder or putting excess into battery storage when it's warm. The system is not only more efficient, but bills have fallen.</p><p>Smart energy developments like those in Hyllie, Ludivika, and renewable-driven district heating, offer a radical alternative to the centralized energy systems many countries rely on today.</p><p>The EU's leaders have a challenge: how to generate 32% of energy from renewables by 2030. Sweden offers a vision of how technology and local solutions can turn a goal into a reality.</p>
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