STC's Laundry for a Clean Ocean

Early this August, The STC environmental department put on our Laundry for a Clean Ocean class. This class was designed to inform community members how our domestic laundry is contributing to the ocean plastic and pollution problem. We offered two class times, and they were both delightfully full. Those who attended the classes received a sustainable laundry starter kit to help them lessen their impact on ocean pollution. We were so happy to see how many members in the community were interested in this topic.

Thank you to everyone who attended!

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In the class we looked at three main sources of ocean pollution that come from a typical home laundry routine

COMMERCIAL LAUNDRY DETERGENT

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Most laundry detergents in the United States come in big plastic jugs like the ones in the picture. These are single use plastics which are considered to be the leading cause of ocean plastic pollution. They are recyclable, but it is important to note that only about 9% of plastics in the US ever make it to be recycled. This is not just from a lack of people recycling. The recycling industry is like any other industry - it has to make financial sense. If recycling loads are too contaminated with dirty food containers or mis-sorted items, it is cheaper for the recycling operation to send it to the dump than it is to spend the money and energy to deal with sorting and cleaning.

Here in Skagway, none of our plastic is recycled. It all goes to the incinerator. Our waste is well managed and has a nice short and direct path from our homes to the incinerator. So it most likely won’t end up in the ocean . However, burning plastic will contribute to air pollution. We should probably avoid it where we can.

DRYER SHEETS

Something that we had not thought of until recently, was what dryer sheets are actually, physically made of. It turns out that dryer sheets are polyester - which means plastic.

These little polyester sheets that we throw in with every dry cycle are the epitome of single use plastic. There is no way to recycle them, and no good way to reuse them.

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As well as being wasteful, they are also much more likely to end up in our oceans than larger bulkier plastics like our detergent bottles. Because they are light and small, they could easily fall out of the trash on the way out or cling to your clothes and fall off outside. Once loose outdoors, wind could easily pick them up and carry them to a waterway. These sheets are the type of synthetic material that is going to break down into small pieces quickly once it is in the ocean and then could be mistaken for food by marine animals.

MICROFIBERS SHEDDING FROM CLOTHES DURING WASHING

We all know our clothes shed fibers in the dryer. We know this because we have to empty the lint filter every time we take a load out. That mat of lint is made up of little fibers from your clothes that have come loose during the drying cycle. Many of our clothes are made of synthetic materials now. This means the fibers shedding off of them are PLASTIC.

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What many people don’t realize is that the same kind of shedding that happens in the dryer also happens in the washing machine. The big difference is that washing machines don’t have any filter like our dryers do.

All of the tiny plastic fibers from our synthetic clothing are washing down the drain. Most will pass through wastewater facilities and end up in our waterways and oceans.

Studies have found that one synthetic garment can shed up to 700,000 individual fibers in one wash cycle. When everyone’s wash is combined, we are washing hundreds of thousands of tons of plastic into our oceans every year just from our laundry. Research has found that these microfibers can be found in every part of the ocean – across the globe and at all depths

The STC environmental department takes water samples weekly from Nahku Bay. We will often see these fibers show up under the microscope in our samples. They can be so small that you cannot even see them with your naked eye. However even the smallest pieces of plastic can have serious impacts. They can easily be mistaken for food by aquatic animals, or unintentionally ingested by filter feeders.

Click through below to see what different synthetic clothing looks like under a microscope. It is easy to see how vulnerable our clothes are to shedding fibers.

 

Our sustainable laundry kits offered solutions to each of these problems

We gave all our kits out to class participants, but all the items in them can be found and purchased independently. We can help you find them if you are interested in getting any of the items for your own home.

HANDMADE LAUNDRY DETERGENT

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WOOL DRYER BALLS

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Wool dryer balls are a pretty great alternative to dryer sheets. They can replace dryer sheets to soften clothes and reduce drying times. They are made of natural fiber and can be used for years before they need to be replaced. You really just toss them in your dryer and leave them there. They will tumble around with your clothes in the dryer separating them and agitating them. This will soften your clothes and help them dry faster. You want to use between 3 and 6 in your dryer at a time.

If you do decide to get some, they take very little care. If they ever start to look dirty, or you want to wash them, you can just toss them in the washer on hot and then dry them immediately after to avoid mildew. If they start to pill that is totally fine. You can remove the pills or leave them. It is totally up to you.

THE CORA BALL

Plastic microfiber pollution was relatively recently discovered and hasn’t been addressed very long. But new technologies and tools for trapping and catching them are being developed. We looked into some of these and the one we found the most appealing was the Cora Ball. These were included in our sustainable laundry kits. All you will have to do with a cora ball is keep it in your washing machine. And it will do the rest of the work.

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The Cora Ball was designed to mimic coral in the way it allows water to pass through while catching particles. Cora Balls are basically a ball of spindles made of 100% recycled plastic. These spindles have little rubber teeth on them that face inward. This makes it easy for fibers to move toward the center of the ball, but hard for them to move outward – essentially trapping them at the center. Studies done on the Cora Ball have shown that it traps aproximatly 26% of the microfibers that are loosened in a washing cycle. Which is pretty good considering all you have to do is leave it in your washer

Because the fibers coming off our clothes are so small, it takes time to really start to see them. It can take 5 to 25 washes before you see anything. One of the issues that Cora Ball has faced is that people cannot see the fibers build up, so they assume it is not working.

When we started using the Cora ball, we were a couple weeks in and it still seemed like all we had caught was our dog’s hair and our own. We put the Cora Ball under the microscope to see what was really going on. You can see in the bottom picture what the Cora Ball looked like to our naked eye. The picture on the far right shows what we saw with the microscope. Even though we couldn’t see it, there were teeny tiny microfibers building up in there.

If you are interested in getting your own Cora Ball you can find them easily online. Coraball.com and earthhero.com both sell them.

 

Below is a video of the full Laundry for a Clean Ocean class.

STC’s 2020 Air Quality Study

STC’s  air quality monitor set up in its environmental enclosure at 11th and Broadway.

STC’s air quality monitor set up in its environmental enclosure at 11th and Broadway.

TSI DustTrak air monitor

TSI DustTrak air monitor

 

STC’s study is looking specifically at what is called particulate matter (PM) 2.5. Particulate matter is a term used for airborne particles and liquid droplets. 2.5 refers to the size of the particle. The particles we are looking at are 2.5 microns in diameter or smaller. The graphic to the right gives a clear illustration of how truly small these particles are. Particles 10 microns and smaller have been shown to have negative health effects; however, those that are 2.5 or less are of the greatest health concern. The reason these very small particles can be so dangerous is that they can be inhaled, get deep into our respiratory tract and even enter the blood stream.

 
Graphic borrowed from EPA website (https://www.epa.gov/sites/production/files/2014-05/documents/huff-particle.pdf)

Graphic borrowed from EPA website (https://www.epa.gov/sites/production/files/2014-05/documents/huff-particle.pdf)

 

There are many sources of Particulate matter pollution including wood-burning stoves, forest fires, industry, cars and buses, and diesel engines. During our tourist season Skagway has a huge influx of buses and traffic constantly moving through town, the train heading up the pass many times a day, and diesel exhaust from cruise ships in port. Having data about how these activities are impacting Skagway’s air will give the Skagway community the ability to make better informed decisions about air pollution and hopefully help us keep our air as beautifully clean as it is this season.

You may have seen these set up around town this spring and summer and wondered what they are…

These are STC’s air quality monitors. STC has three TSI DustTrak monitors that we have been deploying in three locations in Skagway since early April. One near the small boat harbor, one near the STC Tribal Community Center, and one at the north end of town.

 STC’s environmental department is using these monitors to look at particulate matter (PM) in Skagway’s air. Our original study was designed to observe the impact of cruise ships and related tourist traffic on the air quality of Skagway during the 2020 season. This turned out to not be possible this year due to the absence of tourism. However, the unique circumstances of 2020 have left us with a valuable opportunity to see what Skagway’s air looks like without the influence of the cruise ship industry. We will collect data this season and then repeat this study next year as cruise ships return. This will allow us to compare results and get much clearer picture of how much or little tourism is affecting the air in our community.

 
Graphic borrowed from EPA website (https://www.epa.gov/pm-pollution/particulate-matter-pm-basics)

Graphic borrowed from EPA website (https://www.epa.gov/pm-pollution/particulate-matter-pm-basics)

 

If there is particulate matter in the air, a person is exposed every time they breath in. Particulate matter smaller than 2.5 microns can include acids, organic chemicals, metals, dust, and allergens. While symptoms of exposure can be just temporary coughing, shortness of breath or eye irritation, there are many serious health concerns associated with PM 2.5. Lung disease, heart disease, cancer and asthma have all been associated with exposure to particulate pollution. Efforts and regulations have been put in place nationally to reduce particulate matter pollution in order to keep air clean and people healthy. Understanding the sources of particulate matter both on a large scale and at a local level can be very valuable in this effort.

 
Photograph from Alaska Department of Environmental Conservation (file:///C:/Users/User/Downloads/cpvec-2015report%20(2).pdf)

Photograph from Alaska Department of Environmental Conservation (file:///C:/Users/User/Downloads/cpvec-2015report%20(2).pdf)

The Return of Saak

In partnership with Takshanuk Watershed Council (TWC) and Chilkoot Indian Association (CIA), the STC Environmental Department has begun its 4th year of data collection on eulachon (Thaleichthys pacificus) and is excited to announce that this year’s run has commenced in both the Taiya and Skagway Rivers!

Reuben Cash, environmental coordinator, twisting closed a Whirl-Pak sample bag full of Taiya River water.

Reuben Cash, environmental coordinator, twisting closed a Whirl-Pak sample bag full of Taiya River water.

Little was known about the population structure of eulachon in Southeast Alaska until TWC and CIA launched a study in 2014, using mark-recapture statistical methodology and cutting-edge environmental DNA (eDNA) sampling techniques to gain a better understanding of the size and timing of the runs. 

Traditional statistical methods like mark-recapture can estimate population size with high confidence, but are time-consuming, logistically complex, potentially stressful to the fish, and costly.  In years past, STC staff partnered with Klondike Gold Rush National Park and set up a modified fyke net in the lower Taiya along with boat-based larval outdrift sampling to facilitate these methods, requiring multiple personnel to work long days for nearly a month.  Conversely, eDNA sampling can be performed by a crew of two in a few hours, processed by a single lab technician in 1-2 hours, and does not require any fish handling.  After several years of collecting both traditional and eDNA population data, it was established that eDNA methods offer a reliable index to actual run sizes.  Therefore, in 2019 STC ditched the fyke net and switched solely to eDNA sampling.

The filtering setup at the STC lab.

The filtering setup at the STC lab.

Our field crew collects water samples daily from two locations on each river during the run – one near the estuary and another approximately 1-5 km upstream of the river mouth.  These samples are vacuum pumped through a micropore filter which captures the eDNA, and then sent to Oregon State University for analysis.  Additionally, the crew measures water quality, collects environmental data, and conducts daily wildlife censuses to track changes in diversity, total count, and behavior, information that can indicate both the initiation and conclusion of the run. Of course, STC’s environmental coordinator was ready with his GoPro to capture underwater video of these fish too.

Counting wildlife at the mouth of the Taiya River.

Counting wildlife at the mouth of the Taiya River.

Collecting water quality data in the mainstem of the Taiya River.

Collecting water quality data in the mainstem of the Taiya River.

eDNA sampling for population estimates is an amazing technique that has allowed our environmental department to continue participating in TWC and CIA’s ground breaking study, and has great potential for other wildlife applications too. Say hello or wave to our field crew if you see them out there!

Spring is Here and Nahku Bay is Full of Life

Picture taken from our water sample microscopy April 22, 2020 featuring Thalassiosira and Skeletonema - welcome signs of spring.

Picture taken from our water sample microscopy April 22, 2020 featuring Thalassiosira and Skeletonema - welcome signs of spring.

The phytoplankton are beginning to bloom. Plankton help keep our air full of oxygen and our ocean well fed. However, when they bloom means it is time to be cautious with shellfish collecting. There are a few plankton species that produce toxins which are very harmful and even lethal to humans. Cooking and freezing have no impact on the toxin levels. So, it is important to stay informed if you are going to consume wild shellfish.

Blue mussels (Mytilus edulis) at Nahku Bay during low tide.

Blue mussels (Mytilus edulis) at Nahku Bay during low tide.

STC’s environmental department is continuing to collect blue mussels and water samples in order to monitor for harmful algal blooms in Nahku Bay. The lab in Sitka, where we send our samples for analysis, is still operating at a limited capacity. STC has sent in three samples over the last month; the first two have come back well under the FDA regulatory limit for paralytic shellfish poisoning (PSP), and results for the third have not come in yet. However, Ketchikan has begun to see levels over the regulatory limit already this season.

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Results for Skagway’s shellfish tests can be seen on STC’s website at http://www.skagwaytraditional.org/psp through the “Historic Data” link or on Seator’s website at www.seator.org/data.

PSP results from STC’s environmental department web page.

PSP results from STC’s environmental department web page.

It is important to note that currently the Sitka lab is only able to test for toxins from one of the three harmful plankters that we see here in SE Alaska. They are building their capacity, and they should be able to test for toxins from the other two species in the near future.

In addition to sending in shellfish samples every two weeks to be tested for PSP toxins, we collect water samples every week which we look at under the microscope. By looking at the water samples, we can see if there are any of the plankton species present that produce harmful toxins. Just because one of the plankton species are present doesn’t mean that the shellfish will necessarily be over safe limits for toxins, however, they can be a good indicator.

Pseudo-nitzschia seen in a water sample from late April. Pseudo-nitzchia can produce a neurotoxin called domoic acid which causes a neurological disorder known as amnesic shellfish poisoning.

Pseudo-nitzschia seen in a water sample from late April. Pseudo-nitzchia can produce a neurotoxin called domoic acid which causes a neurological disorder known as amnesic shellfish poisoning.

In our last week’s water sample, we started to see an uptake in the number of Pseudo-nitzschia, one of the harmful plankters.

Reuben Cash, our environmental coordinator collecting water samples at Nahku Bay.

Reuben Cash, our environmental coordinator collecting water samples at Nahku Bay.

We will keep collecting shellfish samples to send to the Sitka lab and monitor water samples for harmful plankton species. Check our website and Seator’s for updates. When PSP levels go above the recommended levels, public service announcements will be posted. Keep an eye out because this is the time of year, we start to see levels rise.

STC’s Environmental Department Has New Staff

The environmental department has two new employees working hard to address priority issues in our community!  Reuben and Sarah Cash are excited to be part of the STC team and bring a unique set of skills to the table. 

Reuben Cash began working for the Tribe in June of 2019 as the Environmental Coordinator.  He is from Skagit County, WA, with a degree in environmental conservation specializing in Geographic Information Systems (GIS).  Reuben hopes to use GIS for mapping traditional resources, salmon habitat, and forest health in the Skagway region as well as building a database for use in modeling invasive species spread, harmful algae bloom dynamics, and any other issue requiring geospatial data.  He is also certified in advanced wetland delineation, laboratory water quality analysis, and wilderness first aid/CPR.  Armed with an ancient GoPro camera, one of his favorite past times is to capture footage of juvenile salmon in off-channel pools, or time lapses of tides and sunset clouds.  You may see him paddling a kayak on Tutshi, hiking with his dog Olga at Upper Dewey, or snorkeling above the wreckage of the Bark Canada in Nahku.   

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Sarah Cash joined STC’s environmental department at the beginning of February. Before moving to Skagway last July, she lived and worked in Washington’s beautiful Skagit Valley. Sarah graduated from Central Washington University with an interdisciplinary Bachelor of Science degree. For the past five years she was working in cultural resource management based out of Mount Vernon, Washington where she worked on archaeological surveys, data recovery projects, cultural resource monitoring for construction projects, as well as lab work. While Sarah’s experience is in cultural resources, she believes that environmental and cultural resources go hand and hand. She is excited to broaden her experience and focus her energy on environmental issues. Sarah hopes to use skills from her education and work experience to help maintain the Skagway area as a safe and healthy place to live. When Sarah isn’t working, she enjoys hiking, kayaking, and creative writing.

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