Rochana Jayakumar

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Organochlorine pesticide residues were determined in tissues of five Indian white-backed vultures and two of their eggs collected from different locations in India. All the samples had varying levels of residues. p,p'-DDE ranged between 0.002 microg/g in muscle of vulture from Mudumali and 7.30 microg/g in liver of vulture from Delhi. Relatively higher(More)
Variation in metal contamination in six species of birds, namely the Cormorant (Phalacrocorax carbo), Cattle Egret (Bubulcus ibis), Little Egret (Egretta garzetta), Pond Heron (Ardeola grayii), Common Myna (Acridotheres tristis) and Jungle Babbler (Turdoides striatus) in Nilgiris district, Tamil Nadu, India. The accumulation of heavy metals differed among(More)
We present a wearable sensor system consisting of a wristband and chest patch to enable the correlation of individual environmental exposure to health response for understanding impacts of ozone on chronic asthma conditions. The wrist worn device measures ambient ozone concentration, heart rate via plethysmography (PPG), three-axis acceleration, ambient(More)
We present a solar-powered, wireless, wrist-worn platform for continuous monitoring of physiological and environmental parameters during the activities of daily life. In this study, we demonstrate the capability to produce photoplethysmogram (PPG) signals using this platform. To adhere to a low power budget for solar-powering, a 574nm green light source is(More)
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