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The state of Bihar has been facing floods since for a long time. By Dr. Nitish Priyadarshi Bihar is India's most flood-prone State, with 76% of the population in the north Bihar living under the recurring threat of flood devastation. According to some historical data, 16.5% of the total flood affected area in India is located in Bihar while 22.1% of the flood affected population in India lives in Bihar. About 68,800 square kilometres (26,600 sq mi) out of total geographical area of 94,160 square kilometres (36,360 sq mi) comprising 73.06% is flood affected. Geographically Nepal is a mountainous region. When heavy rains occur in the mountains of central and eastern Nepal the water flows into the major drainages of Narayani, Bagmati, and Koshi rivers. As these rivers cross into India they flow into the plains and lowlands of Bihar and break their banks. Bihar is surrounded by Nepal in the north, West Bengal in the east, Uttar Pradesh in the west and  Jharkhand t...

Iodine deficiency is an important global health problem. 8 person out of every hundred, suffer from goiter in India. by Dr. Nitish Priyadarshi Halogens are present and are volatile trace elements in most geological samples. Among them, iodine has the lowest abundance; less than 0.1 ppm in igneous rocks and less than several ppm in sedimentary rocks. Iodine is least abundant of the halogens and is lithophile element. It is typically a dispersed element and is never concentrated enough in rocks or sediments to form independent minerals. The content of iodine is higher in air masses of marine origin than in those over the continents (Rankama and Sahama, 1950). The content of iodine seems to have some relationship to the salinity of the sea water as it is found to increase to the rise in salinity. Iodine is carried away from the atmosphere partly by rainwater and partly by direct adsorption into the soil and into plants. High solubility of iodine makes it enriched in soil and its highest c...

Ranchi the capital city of Jharkhand State in India is expanding both vertical and horizontal resulting in lots of problem . by Dr. Nitish Priyadarshi As more and more people leave villages and farms to live in cities, urban growth results. Urbanization occurs naturally from individual and corporate efforts to reduce time and expense in commuting and transportation while improving opportunities for jobs, education, housing, and transportation. Living in cities permits individuals and families to take advantage of the opportunities of proximity, diversity, and marketplace competition. People move into cities to seek economic opportunities. In rural areas, often on small family farms, it is difficult to improve one's standard of living beyond basic sustenance. Farm living is dependent on unpredictable environmental conditions, and in times of drought, flood or pestilence, survival becomes extremely problematic. Cities, in contrast, are known to be places where money, services and wea...

Bihar and Jharkhand is facing one of the gravest natural disasters in the form of arsenic contamination of ground water. by Dr. Nitish Priyadarshi Thousands of people living in over hundreds of villages in different district of Bihar and Sahebganj district of Jharkhand state in India are facing serious threat to their health due to alarmingly high quantity of arsenic present in the underground water. Bihar is facing one of the gravest natural disasters in the form of arsenic contamination of ground water. In the first detailed study of ground water quality, the Department of Environment and Water Management, A.N.College, Patna, has already submitted Interim Reports to PHED and UNICEF about the alarming findings on arsenic poisoning cases in the districts of Patna, Bhojpur, Vaishali and Bhagalpur. The study was conducted from April 2004 to May 2006, the study area being confined to 10 kms. wide belt along the Ganga river as per the instructions of PHED and UNICEF. According to Dr.Ashok ...

The Dark Side of Black Carbon by Dr. Nitish Priyadarshi Image Credit: NASA As interest in Earth's changing climate heats up, a tiny dark particle is stepping into the limelight: black carbon. Commonly known as soot, black carbon enters the air when fossil fuels and biofuels, such as coal, wood, and diesel are burned. Black carbon is found worldwide, but its presence and impact are particularly strong in Asia. Black carbon, a short-lived particle, is in perpetual motion across the globe. The Tibetan Plateau's high levels of black carbon likely impact the region's temperature, clouds and monsoon season. Black soot deposited on Tibetan glaciers has contributed significantly to the retreat of the world's largest non-polar ice masses, according to new research by scientists from NASA and the Chinese Academy of Sciences. Soot absorbs incoming solar radiation and can speed glacial melting when deposited on snow in sufficient quantities. Temperatures on the Tibetan Plateau -- ...