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American River Litter Surveys

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Litter survey results Dec and Nov 2015 American River in the region of Rancho Crodova

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American River Litter Surveys

  1. 1. C O R D O V A C R E E K Litter surveillance and disposal summaryreportDecember/November2015. hammerdirt association - Rancho Cordova - info@hammerdirt.ch - www.plagespropres.ch
  2. 2. Cordova Creek activity report - December 2015 - gary@hammerdirt.ch - www.plagespropres.ch About hammerdirt About this project Hammerdirt is a nonprofit associ- ation with no political or religious affiliations. We are driven by our desire to create an environment that leverages technology and citi- zen participation to solve problems now and in the future. We prefer action to words and our projects reflect this philosophy. Collaborative by nature we actively seek feedback from all interested parties and we integrate that feed back into our operations. The project is based on a statistical approach and requires data collection regularly and systematically. In order to establish a trend, the data collected must have temporal, quantitative and geographical parameters. Once collected, the data can be used to evaluate the effectivenes of litter mitigation strategies. The data is compared over time, to demonstrate the evolution of the quantity and type of litter found at precise locations. We use an international standard developed by the EU and UNEP for categorizing the litter found during a litter-survey . Our data is compatible with the Marine Litter Watch pro- gram. Our method is simple : 1.Separate material into categories 2.Count each item in each category 3.Record quantities 4.Photograph 5.Dispose of material We have refined our methods and we use common technologies to mini- mize administrative overhead. Data entry is completed on site and is im- mediately exploitable. The method
  3. 3. Cordova Creek activity report - December 2015 - gary@hammerdirt.ch - www.plagespropres.ch Data Follow usSupport The data collected is availble for download and is free to use for all non-comercial use, follow the “Kobo Toolbox” link. We use the “Marine Litter Watch” codes for the data, you can create your own key or contact us and we will send you the code-key (let us know what you are using the data for). Our weekly schedule and abbreviated survey results are posted on Blogger, facebook and Twitter. Interested in- dividuals should follow us on one of these platforms. This project is unfunded, Gary Hare provides all the resources for collecting data in California, the adminstration and data base is managed by hammerdirt. We are always looking for seri- ous, dedicated people that would like to fund, initiate or partici- pate in projects of this type. For more information, visit: www.hammerdirt.ch
  4. 4. Cordova Creek activity report - December 2015 - gary@hammerdirt.ch - www.plagespropres.ch Consolidated survey results For the period between November 24 and De- cember 13, 817 pieces of litter representing 75 categories were re- moved from the two lo- cations. Plastic as a per- centage of total ranged from 68.1% to 84.8%. 0,0% 10,0% 20,0% 30,0% 40,0% 50,0% 60,0% 70,0% 80,0% 90,0% 0 20 40 60 80 100 120 140 160 180 2015-11-24 2015-11-28 2015-11-29 2015-12-02 2015-12-04 2015-12-08 2015-12-13 Plasticasa%oftotal Piecesoflittercollected Day of collection Daily totals and plastic as % of total Daily total Plastic as a % of total 0,0% 10,0% 20,0% 30,0% 40,0% 50,0% 60,0% All else Crisps packets/sweets wrappers Polystyrene pieces 1 cm > < 50 cm Plastic pieces 1 > < 50 cm Shopping Bags incl. pieces Drink bottles >0.5l Fishing line/monofilament (angling) Drink bottles <=0.5l Plastic caps/lids unidentified Plastic caps/lids drinks Straws and stirrers Plastic bags collective role; what remains from… Mostcommon types of litter found as % of total Candy wrappers, foam, small bits of plastic and shopping bags ac- count for 30.8% of the litter found at the two locations. Location GPS # of Samples Cumulative total Pieces m² % of plastic Cordova creek 1 38.60187344 -121.3171967 0 4 3 313 2.24 76,7% Cordova creek 2 38.6020397 -121.31717802 4 504 1,77 76,9%
  5. 5. Cordova Creek activity report - December 2015 - gary@hammerdirt.ch - www.plagespropres.ch Summary results cordova creek I 313 pieces of litter rep- resenting 59 categories were collected in three surveys. Candy wrap- pers, foam, drink bottles and plastic lids make up 33% of the items found at location 1. Download data 90 95 100 105 110 115 2015-11-29 2015-11-24 2015-12-04 Piecesoflittercollected Date of collection Litter collected per day Cordova Creek 1 10% 5% 5% 5% 4% 4% 67% COMPOSITION OF LITTER CORDOVA CREEK 1 Crisps packets/sweets wrappers Polystyrene pieces 1 cm > < 50 cm Polystyrene pieces > 50 cm Plastic caps/lids unidentified Drink bottles >0.5l Plastic caps/lids drinks All else
  6. 6. Cordova Creek activity report - December 2015 - gary@hammerdirt.ch - www.plagespropres.ch Summary results cordova creek II Download data 16% 11% 6% 5% 5% 3% 54% COMPOSITION OF LITTER CORDOVA CREEK 2 Crisps packets/sweets wrappers Polystyrene pieces 1 cm > < 50 cm Shopping Bags incl. pieces Fishing line/monofilament (angling) Plastic pieces 1 > < 50 cm Drink bottles >0.5l All else 0 20 40 60 80 100 120 140 160 180 2015-11-28 2015-12-02 2015-12-08 2015-12-13 Piecesoflittercollected Date of collection Litter collected per day Cordova Creek 2 540 pieces of litter rep- resenting 66 categories were collected in four surveys. Candy wrap- pers, foam, plasticbags and fishing line make up 38% of the items found at location 2.
  7. 7. Cordova Creek activity report - December 2015 - gary@hammerdirt.ch - www.plagespropres.ch Gary Hare Gary is an artist, licensed gen- eral contractor, and woodwork- er with 25 years experience in multiple trades in the construc- tion industry. He has a lifelong appreciation for nature and the outdoor/actual world. Gary is the project manager for Califor- nia hammerdirt operations. hammerdirt, California Links Suggested Reading Catlin-Groves, C. (2012). The Citizen Science Landscape: From Volunteers to Citizen. International Journal of Zoology. Hoellein, T., Westhoven, M., & Lyandres, O. (2014). Abundance and environ- mental drivers of anthropogenic litter on 5 Lake Michigan beaches: A study facilitated by citizen science data collection. Journal of Great Lakes Research Dickinson1, J., Shirk1, J., Bonter, D., Bonney, R., Crain, R. L., & Martin, J. (2012). The current state of citizen science as a tool. The Ecological Society of America. National Oceanic Atmospheric Administration - Marine Debris Surfrider - Ocean Iniative American chemical society - Citizen Science The Citizen, science and the Environment - hammerdirt LinkedIn Pulse The business sense of funding grassroots environmental groups

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