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Assessment of radiofrequency/microwave radiation emitted by the antennas of rooftop-mounted mobile phone base stations

Keow MA, Radiman S

Radiat Prot Dosimetry, 2006;121(2):122-7.

Radiofrequency (RF) and microwave (MW) radiation exposures from the antennas of rooftop-mounted mobile telephone base stations have become a serious issue in recent years due to the rapidly evolving technologies in wireless telecommunication systems. In Malaysia, thousands of mobile telephone base stations have been erected all over the country, most of which are mounted on the rooftops. In view of public concerns, measurements of the RF/MW levels emitted by the base stations were carried out in this study. The values were compared with the exposure limits set by several organisations and countries. Measurements were performed at 200 sites around 47 mobile phone base stations. It was found that the RF/MW radiation from these base stations were well below the maximum exposure limits set by various agencies.

Matched MeSH terms: Microwaves/adverse effects*

Effect of microwave heating on the quality characteristics of canola oil in presence of palm olein

Ali MA, Nouruddeen ZB, Muhamad II, Latip RA, Othman NH

Acta Sci Pol Technol Aliment, 2013 Jul-Sep;12(3):241-52.

PMID: 24584953

Microwave heating is one of the most attractive cooking methods for food preparation, commonly employed in households and especially in restaurants for its high speed and convenience. The chemical constituents of oils that degrade during microwave heating do so at rates that vary with heating temperature and time in a similar manner to other type of processing methods. The rate of quality characteristics of the oil depends on the fatty acid composition and the minor components during heating. Addition of oxidative-stable palm olein (PO) to heat sensitive canola oil (CO), may affect the quality characteristics of CO during microwave heating. The aim of this study was to evaluate how heat treatments by microwave oven affect the quality of CO in presence of PO.

Matched MeSH terms: Microwaves/adverse effects*

Fulltext Non-ionizing radiation exposure causing ill-health and alopecia areata

Isa AR, Noor M

Med J Malaysia, 1991 Sep;46(3):235-8.

PMID: 1839918

Three cases of occupational exposure to radio-frequency and microwave radiation were seen at the out-patient clinic, Hospital Universiti Sains Malaysia. They presented with run-down symptoms of neck strain associated with throbbing headache, irritability, loss of appetite, fatigue, memory difficulties, and numbness of extremities. They also presented with alopecia areata which is felt to be causally linked to the radiation exposure.

Study site: Outpatient clinic Hospital Universiti Sains Malaysia (HUSM)

Matched MeSH terms: Microwaves/adverse effects*

Spatial memory performance of Wistar rats exposed to mobile phone

Narayanan SN, Kumar RS, Potu BK, Nayak S, Mailankot M

Clinics (Sao Paulo), 2009;64(3):231-4.

PMID: 19330250

INTRODUCTION: With the tremendous increase in number of mobile phone users world wide, the possible risks of this technology have become a serious concern.

OBJECTIVE: We tested the effects of mobile phone exposure on spatial memory performance.

MATERIALS AND METHODS: Male Wistar rats (10-12 weeks old) were exposed to 50 missed calls/day for 4 weeks from a GSM (900/1800 MHz) mobile phone in vibratory mode (no ring tone). After the experimental period, the animals were tested for spatial memory performance using the Morris water maze test.

RESULTS: Both phone exposed and control animals showed a significant decrease in escape time with training. Phone exposed animals had significantly (approximately 3 times) higher mean latency to reach the target quadrant and spent significantly (approximately 2 times) less time in the target quadrant than age- and sex-matched controls.

CONCLUSION: Mobile phone exposure affected the acquisition of learned responses in Wistar rats. This in turn points to the poor spatial navigation and the object place configurations of the phone-exposed animals.

Matched MeSH terms: Microwaves/adverse effects*

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