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EM radiation can harm living things and the environment if the exposure is strong enough, as it can cause tissue damage, thermal effects like increased temperature, and potentially cancer at high frequencies and intensities. However, lower frequencies of microwave radiation between 100 kHz to 300 MHz are believed to have no harmful effects. Some research also indicates that electromagnetic radiation could potentially be used constructively to cure diseases by killing pathogens like bacteria, viruses, and fungi.
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1) 1,000 Rem x 70 kg person = 70,000 Rem
1 Rem = 100 rads
So 70,000 Rem = 7,000,000 rads
1 rad = 100 ergs of energy absorbed per gram of tissue
Person's mass is 70,000 g
So energy absorbed = 7,000,000 rads x 100 ergs/rad x 70,000 g = 4.9 x 10^13 ergs
2) Energy to raise 1 g of water by 1°C is 41,600,000 ergs
Person absorbed 4.9 x 10^13 ergs
Mass of person is 70,000 g (mostly water)
So temperature change = (4.9 x
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This Dissertation explores the particular circumstances of Mirzapur, a region located in the
core of India. Mirzapur, with its varied terrains and abundant biodiversity, offers an optimal
environment for investigating the changes in vegetation cover dynamics. Our study utilizes
advanced technologies such as GIS (Geographic Information Systems) and Remote sensing to
analyze the transformations that have taken place over the course of a decade.
The complex relationship between human activities and the environment has been the focus
of extensive research and worry. As the global community grapples with swift urbanization,
population expansion, and economic progress, the effects on natural ecosystems are becoming
more evident. A crucial element of this impact is the alteration of vegetation cover, which plays a
significant role in maintaining the ecological equilibrium of our planet.Land serves as the foundation for all human activities and provides the necessary materials for
these activities. As the most crucial natural resource, its utilization by humans results in different
'Land uses,' which are determined by both human activities and the physical characteristics of the
land.
The utilization of land is impacted by human needs and environmental factors. In countries
like India, rapid population growth and the emphasis on extensive resource exploitation can lead
to significant land degradation, adversely affecting the region's land cover.
Therefore, human intervention has significantly influenced land use patterns over many
centuries, evolving its structure over time and space. In the present era, these changes have
accelerated due to factors such as agriculture and urbanization. Information regarding land use and
cover is essential for various planning and management tasks related to the Earth's surface,
providing crucial environmental data for scientific, resource management, policy purposes, and
diverse human activities.
Accurate understanding of land use and cover is imperative for the development planning
of any area. Consequently, a wide range of professionals, including earth system scientists, land
and water managers, and urban planners, are interested in obtaining data on land use and cover
changes, conversion trends, and other related patterns. The spatial dimensions of land use and
cover support policymakers and scientists in making well-informed decisions, as alterations in
these patterns indicate shifts in economic and social conditions. Monitoring such changes with the
help of Advanced technologies like Remote Sensing and Geographic Information Systems is
crucial for coordinated efforts across different administrative levels. Advanced technologies like
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9
Changes in vegetation cover refer to variations in the distribution, composition, and overall
structure of plant communities across different temporal and spatial scales. These changes can
occur natural.
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- 1. 12 EM RADIATION ON LIVING THINGS AND THE ENVIRONMENT Exposure to low frequency fields that are strong enough can lead to dizziness, seeing light flashes and feeling tingling or pain through stimulation of nerves. Exposure to radiofrequency fields that are strong enough can lead to heating of body tissue, and result in damage to tissues and organs. THE EFFECTS OF WHAT ARE THE EFFECTS OF EM RADIATION ON YOUR DAILY LIVING? PERFORMANCE TASK 1 BY: THEA T. FERNANDO For example, high energy microwave radiation at frequencies from 300 MHz to 300 GHz can be carcinogenic and cause thermal effects, increasing the temperature of exposed organisms. On the other hand the same type of microwave radiation at lower frequencies from 100 kHz to 300 MHz has no such effect. WHAT ARE THE EM RADIATION THAT MAY HARM LIVING THINGS AND ENVIRONMENT? IS EM RADIATION BENEFICIAL TO LIVING THINGS? According to the concepts of electro medicine most of the diseases are caused by micro organisms. ... The killing and destructive power of electromagnetic radiation can be used constructively for curing incurable diseases by eradicating the disease-producing pathogens and microorganisms like bacteria, virus & fungi.
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