The Notebook: Reflections on Life and Values

Delve into the pages of "The Notebook" to explore personal narratives, migrant experiences, and the deeper meaning of life. Engage with exercises designed to uncover desires, projects, and aspirations, guiding individuals towards a fulfilling path of self-discovery and growth.

• Reflection
• Values
• Life
• Notebook
• Exploration

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1. Rapid screening for pathogens in drinking water: preliminary results from a national scale survey in Malawi Jade Ward, Dan Lapworth, Gloria Gwengweya, Alan MacDonald, Steve Pedley, Dan Read

2. Why measure water quality? http://www.clker.com/cliparts/I/g/O/k/0/b/red-stick-figure-hi.png http://www.clker.com/cliparts/m/i/V/n/p/E/stick-man.svg

3. Water quality in Sub-Saharan Africa Access to improved drinking water source Access to improved sanitation 1990 2015 http://imgarcade.com/pit-latrine.html

4. Study Area Rural Malawi Dry season 2016 5 districts 182 drinking water sources End of wet season 2017 2 districts 40 drinking water sources

5. Detecting microbial contamination Emerging technology Fluorimeter measuring Tryptophan-like fluorescence

6. Factors influencing Tryptophan-like Fluorescence 1.Temperature thermal quenching 2. Turbidity interference with sensor 3. Coloured dissolved organic matter interference with TLF peak

7. Results - Temperature 35 30 Tryptophan-like Fluorescence (QSU) 25 20 15 10 5 0 20 22 24 26 28 30 Temperature (C) Sept - Dec 2016 (Dry) Mar - Apr 2017 (Wet)

8. Results - Turbidity 35 30 25 TLF (QSU) 20 15 10 5 0 0 100 200 300 400 500 Turbidity (NTU) Sept - Dec 2016 (Dry) Mar - Apr 2017 (Wet)

9. Results Coloured Dissolved Organic Matter - fluorimeter 35 30 Tryptophan (QSU) 25 20 15 35 10 30 5 Tryptophan (QSU) 25 0 20 18 28 38 48 58 CDOM fluorimeter 15 10 5 0 18 18.5 19 CDOM fluorimeter 19.5 20 20.5 21

10. Results Dissolved Organic Carbon laboratory analysis 35 30 Tryptophan (QSU) 25 20 15 10 70 5 60 CDOM fluorimeter 0 50 0 2 4 6 8 10 40 DOC mg/l 30 20 10 0 0 2 4 6 8 10 DOC mg/l

11. Factors influencing Tryptophan-like Fluorescence 1. Temperature thermal quenching 2. Turbidity interference with sensor 3. Coloured dissolved organic matter interference with TLF peak

12. Results Comparison with culturing method

13. Conclusions 1. Temperature, turbidity and dissolved organic carbon measurements should always be recorded when using TLF 2. Temperature stability of groundwater suits the application of TLF 3. Low turbidity of groundwater suits the application of TLF 4. Coloured dissolved organic carbon fluorescence does not typically influence TLF readings 5. In cases of exceptionally high turbidity and variable CDOM readings, more detailed microbiological analysis should be undertaken.