Strict Standards: Declaration of EvalField::populate_from_result() should be compatible with Field::populate_from_result($result) in /home/anthology/innovationanthology.com/localfiles/objects/field.php on line 387

Strict Standards: Declaration of DateField::xml_value() should be compatible with Field::xml_value($stripTags = false) in /home/anthology/innovationanthology.com/localfiles/objects/field.php on line 733

Strict Standards: Declaration of DateTimeField::populate_from_result() should be compatible with Field::populate_from_result($result) in /home/anthology/innovationanthology.com/localfiles/objects/field.php on line 851

Strict Standards: Declaration of CollectionField::populate_from_result() should be compatible with Field::populate_from_result($result) in /home/anthology/innovationanthology.com/localfiles/objects/collection.php on line 0

Strict Standards: Declaration of MultiLookupField::load() should be compatible with CollectionField::load($parentFieldValue, $filter = NULL) in /home/anthology/innovationanthology.com/localfiles/objects/multilookup.php on line 61

Strict Standards: Declaration of MultiLookupField::save() should be compatible with CollectionField::save($parentFieldValue, $deleteFilter = NULL) in /home/anthology/innovationanthology.com/localfiles/objects/multilookup.php on line 61

Deprecated: mysql_connect(): The mysql extension is deprecated and will be removed in the future: use mysqli or PDO instead in /home/anthology/innovationanthology.com/localfiles/objects/adodb/adodb-mysql.inc.php on line 105

Strict Standards: Declaration of Image::upload() should be compatible with File::upload(&$fileItem, $thumbnail = false, $extensions = NULL) in /home/anthology/innovationanthology.com/localfiles/objects/image.php on line 405

Strict Standards: Declaration of FileField::populate_from_post() should be compatible with Field::populate_from_post(&$postItem) in /home/anthology/innovationanthology.com/localfiles/objects/image.php on line 0

Strict Standards: Declaration of FileCollectionField::load() should be compatible with CollectionField::load($parentFieldValue, $filter = NULL) in /home/anthology/innovationanthology.com/localfiles/objects/image.php on line 0

Strict Standards: Declaration of FileCollectionField::save() should be compatible with CollectionField::save($parentFieldValue, $deleteFilter = NULL) in /home/anthology/innovationanthology.com/localfiles/objects/image.php on line 0

Strict Standards: Declaration of ImageCollectionField::load() should be compatible with CollectionField::load($parentFieldValue, $filter = NULL) in /home/anthology/innovationanthology.com/localfiles/objects/image.php on line 0

Strict Standards: Declaration of ImageCollectionField::save() should be compatible with CollectionField::save($parentFieldValue, $deleteFilter = NULL) in /home/anthology/innovationanthology.com/localfiles/objects/image.php on line 0

Strict Standards: Declaration of LookupField::populate_from_result() should be compatible with Field::populate_from_result($result) in /home/anthology/innovationanthology.com/localfiles/objects/lookup.php on line 0

Strict Standards: Declaration of LookupEditor::load() should be compatible with CollectionField::load($parentFieldValue, $filter = NULL) in /home/anthology/innovationanthology.com/localfiles/objects/lookupeditor.php on line 0

Strict Standards: Declaration of LookupEditor::save() should be compatible with CollectionField::save($parentFieldValue, $deleteFilter = NULL) in /home/anthology/innovationanthology.com/localfiles/objects/lookupeditor.php on line 0

Strict Standards: Declaration of ContentLinks::load() should be compatible with CollectionField::load($parentFieldValue, $filter = NULL) in /home/anthology/innovationanthology.com/localfiles/objects/innovation/contentlinks.php on line 0

Strict Standards: Declaration of ContentLinks::save() should be compatible with CollectionField::save($parentFieldValue, $deleteFilter = NULL) in /home/anthology/innovationanthology.com/localfiles/objects/innovation/contentlinks.php on line 0
 Innovation Anthology

Research Demonstrates Fracking Fluids Hurt Fish

01/25/2017


Edmonton - Research has found that liquids released from fracked oil and gas wells can harm fish even at low concentrations.

“When we put these frack fluids in, the fluids themselves generate chemicals that have detrimental biological effects,” said University of Alberta biologist Greg Goss.

It’s long been known that chemicals used in fracking – which uses fluids under high pressure to fracture rock formations and release oil and gas – are environmentally toxic. Prof. Goss and his colleagues conducted a study intended to consider how toxic they are by using water that flowed from an actual fracked well.

“The real risk comes from the disposal process, where [companies] have to truck it to a new site or pipeline it to a new site,” Prof. Goss said Tuesday. “If we do have a spill, what are the concerns they have to worry about?”

His paper notes that Alberta has experienced more than 2,500 such spills between 2011 and 2014.

The researchers exposed rainbow trout to “sub-lethal” levels of such fluids. The levels were intended to simulate exposure fish or other organisms would be subject to from a pipeline leak or a spill near a water body.

Even at dilutions as low as 2.5 per cent – 2.5 litres of process water to 100 litres of fresh water – fish showed significant impact on their livers and gills.

Prof. Goss calls the effect “oxidative stress.” That means chemicals in the water force liver and gill cells to age and die more quickly.

“Oxidative stress is associated with damage to membranes,” he said.

Some chemicals in the water, which have been shown to cause hormone disruptions in other studies, were absorbed by the fish.

“There are endocrine-disrupting effects potentially involved in some of the chemicals involved in that,” Prof. Goss said.

“There’s the potential that some of the fluids may be similar in the effects that you would see from municipal waste water, where you might see feminization of animals.”

The effects were amplified by the presence of sediment in the water.

Prof. Goss said that could mean that organisms on lake bottoms or riverbeds could be more at risk than fish.

Latest Program

Listen to mp3

Read more...

Find me socially!