Presented by Sofia Habity HIGH VOLTAGE POWER LINES & PUBLIC HEALTH.

Presented bySofia Habity

HIGH VOLTAGE POWER LINES & PUBLIC HEALTH

Global map

Process Flow

• OH-HV• EMF• ELF-EMF

• Flawed studies• graphs

Introduction Support

Test Conclusion Refutation

Demonstrate studies

Statistics

OutcomeIsland, ''land of

giants'' artistic designs

Over Head High Voltage (OH-HV)

OH-HV radiate Extremely low frequency electromagnetic fields ( ELF-EMF)

- OH-HV EMF pulse 60 times/sec

INTRODUCTION

➢ Illustrations

➢ Lamp plugged in (turned off). ➔ Voltage between the plug and the device.➔ Electric field only.

➢ Lamp is turned on. ➔ Voltage produces a current flow; magnetic

field and electric fields➔ Voltage oscillating at 50-60 Hz.➔ Electric and magnetic fields oscillating at

50-60 Hz50-60 Hz oscillations create ELF-EMF

...Illustrations

Fluorescent light

bulbs lighting up

No batteries

Not plugged in to

power sources

No connections

to the ground

LONG TERM EFFECTS ( Under 345 kV, 500 kV) Sperm count Dynamic state of central nervous system Heart, vessel system Blood structure

SHORT TERM EFFECTS Headaches Abnormal fatigues Sleepiness

EVIDENCE AGAINST HIGH VOLTAGE POWER LINES

Emphasis on subject within 0 - 100 m

1. Power line is a dominant source of magnetic fields.

2. Risk of poor mental health.

3. Biological effects

4. Childhood leukaemia.

Yamazaki Shin et al (2006). Association between High Voltage Overhead Transmission Lines and Mental Health: A Cross-Sectional Study. Bioelectomagnetics

Extremely low frequency EMF field

Biological effect.

Exposure to intense fields

Exposure to Less intense fields

Magnetic phosphenes : the stars and colours you see when you run your eyes

EMF and childhood leukaemia

Ahlbom, A. Et al. (2000). A pooled analysis of magnetic fields and childhood leukemia British journal of cancer, Vol 83(5), p 692-698, 7p

Small sample size ( 10 linemen)

Only 10 subjects lived within 100 m

Low anticipation rate 23% 45% of women were

worried – only a mental state

REFUTATIONS

Yamazaki Shin et al (2006). Association between High Voltage Overhead Transmission Lines and Mental Health: ACross-Sectional Study. Bioelectromagnetics, Vol 27, p 473-478, 6p.

Emphasis on subject within 0 - 100 m

1. Power line is not always a dominant source of magnetic fields.

1. No biological effects

1. Childhood leukaemia.

Biological effect?

EMF and DNA

EMF possess insufficient energy to disrupt DNA covalent bonds

• Theoretical & observational confirmations for EMF to influence human health.

• Acute health effects in long term experiments

• Limited evidence.• Possible biases• Flawed studies• No significant causal

relationship

CONCLUSION

Some high voltage lines are better than others

'The land of giants' ISLAND

REFERENCESDr Niel Cherry ( April 2001). Evidence that Electromagnetic fields from high voltage

power lines and in buildings, are hazardous to human health, especially to young children. Environment Management and Design Division, New Zealand. P 2-51, 49p.

Young Louise B., Young Peyton H. (Dec 1974). Pollution by Electrical Transmission. Bulletin of the atomic scientists, Vol 30 (10), p 34-38, 5p.

Yamazaki Shin et al (2006). Association between High Voltage Overhead Transmission Lines and Mental Health: A Cross-Sectional Study. Bioelectromagnetics, Vol 27, p 473-

478, 6p.

Zenon Sienkiewicz (1998). Biological effects of electromagnetic fields and radiation. Journal of radiological protection, Vol 18 (3), p 185-193.

Gerald Draper, John Swanson, Tim Vincent, Mary Kroll (2006). Power Frequency Electric and Magnetic Fields in the light of Draper et al. 2005. Annals of the new york

academy of sciences, Vol. 1076 (1), p 318-330, 13p.

Ahlbom, A. Et al. (2000). A pooled analysis of magnetic fields and childhood leukaemia. British journal of cancer, Vol 83(5), p 692-698, 7p