Presentation to Hackuarium

1. This link will gave you access to all
the documents in PDF format
https://goo.gl/dIcS0v

2. Hammerdirt
Swimmers, surfers, lifesavers
Removing and counting the trash on the shoreline of Lake Léman

3. Global Movement
 Honolulu strategy
 Oceans initiative
 Marine litter watch
 OSPAR
 Numerous local and regional actors (for example hammerdirt)
 Rencontres nationales des collecteurs de déchets

4. First study : MCBPI Nov 2014 - Aug 2015
 Focussed on litter removal and background research
 Counted volume not pieces
 Positive message
 Ignored by local, regional, national authorities, and other NGO’s
 Adoption of citizen science philosophy

6. Second project MCBPII Nov 2015 – Nov 2016
 Adoption of Marine litter watch system for litter codes
 Surface area measurements, results reported as density of pcs/m²
 Kobo toolbox : Data is available for download
 Open Data Kit (ODK) for form development
 Formalized reporting methods
 Reports distributed to local and national authorities
 Facilitates comparison of our results to other studies in the world

7. 27 Litter Surveys
23 Nov – 23 Jan
o Five different locations
o 8,560 pieces of trash removed
o Between 60% and 97% plastic
0,0%
10,0%
20,0%
30,0%
40,0%
50,0%
60,0%
70,0%
80,0%
90,0%
100,0%
0
100
200
300
400
500
600
2015-11-23
2015-11-24
2015-11-27
2015-12-01
2015-12-02
2015-12-04
2015-12-04
2015-12-07
2015-12-08
2015-12-10
2015-12-10
2015-12-14
2015-12-16
2015-12-17
2015-12-17
2015-12-30
2016-01-06
2016-01-07
2016-01-08
2016-01-13
2016-01-13
2016-01-15
2016-01-19
2016-01-19
2016-01-21
2016-01-23
Plasticasa%ofdailytotal
Totalpiecescollectedperday
Daily totals and plastic as a % of daily total
Montreux-Clarens-Vevey
November 23 2015 - January 27 2016
Daily total Daily Average % Plastic

8. Six categories 72% of trash
o Cigarette butts are 25% of total
o Foam and bits of plastic 36%
o The remaining 560 pieces is spread
out over 70 categories
Cigarette Butts
25%
Foam
24%
Plastic pieces
11%
Glass
bottles/pieces
4%
Candy wrappers
4%
Cotton Swabs
4%
All the rest
28%
Top six categories of trash found
all sites combined
Montreux - Clarens - Vevey
November 2015 - January 2016

9. Certain Items have
cyclical patterns
o Cotton swabs
o Foam
o Plastic Bits
0,0%
2,0%
4,0%
6,0%
8,0%
10,0%
12,0%
2015-11-23
2015-11-30
2015-12-07
2015-12-14
2015-12-21
2015-12-28
2016-01-04
2016-01-11
2016-01-18
Percentageofdailytotal
Cotton swabs as % of daily total
Nov 2015 - Jan 2016
Vevey Clarens Montreux

10. Other Items not so much
o Cigarette butts are a constant in
the environment
0,0%
6,0%
12,0%
18,0%
24,0%
30,0%
36,0%
42,0%
48,0%
54,0%
60,0%
66,0%
2015-11-23
2015-11-30
2015-12-07
2015-12-14
2015-12-21
2015-12-28
2016-01-04
2016-01-11
2016-01-18
Percentageofdailytotal
Cigarette butts as % of daily total
Nov 2015 - Jan 2016
Vevey Clarens Montreux

11. Missed oportunities
 Other data can be collected at the same time
 Integration of litter data to socio-economic studies
 Correlation (if any) of the occurrence of items such as cotton-swabs, toilet fresheners,
tampons to other biological indicators
 Do the cyclical patterns of items correlate to any biological data/water quality data?
 Transport of bacterial pathogens on waterborne styrofoam and plastic
 Many more…

12. What is really in our water ?
 Lonza, Syngenta, CHUV, municpal overflow, Tamoil …
 Microplatics in suspension?
 Heavy metals?
 Analytic chemistry is expensive and requires considerable overhed

13. How can you help ?
 Adopt a beach in the region (Rennens/Lausanne/Morges)
 Further development of DIY biosensors and water quality sensors
 Development of an automated or semi-automated system for quantifying microplastics in
suspension
 Integrate the data in your research

14. Thank you
info@hammerdirt.ch info@plagespropres.ch www.plagespropres.ch www.hammerdirt.ch