2.23 Nitrate-Nitrogen and Nitrite-Nitrogen in Drinking Water Nitrate may be naturally occurring‚ although its presence in drinking water is more often associated with contamination by excessive use of fertilizers (both inorganic and organic)‚ in addition to inappropriate farming practices and sewage. The high nitrate level in drinking water is also associated with the simultaneous presence of bacterial contamination (World Health Organisation‚ 1996). The primary health hazard from drinking water
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Name: Lee An Qi Class: 3H/7 Date: 2 June 2012 Urbanization is the process that leads to an increase in the number and proportion of people living in urban settlements such as cities or towns. It also refers to the increase in the size of land area occupied by urban settlements. To cope with urbanization within a drainage basin‚ urban development and deforestation are carried out‚ which affect flows to and within a river channel. Other factors like drainage density‚ climate‚ area of drainage
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Rivers‚ Flood and Management The draining basin hydrological cycle: The drainage basin is the area of land that is drained by a river and its tributaries. Also; the catchment area from which a river system obtains its water. Drainage basin largely ‘closed’ system- watershed – boundary of a water basin- generally follows a ridge of high land. Movement of water in a drainage basin-Drainage Basin Hydrological Cycle- open system with inputs and outputs LOOK AT PAGE 9 IN NEW TEXTBOOK FOR DIAGRAM
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A parking lot riddled with pools of standing water does not present an inviting welcome to your customers‚ tenants or employees. However‚ many people overlook the more sinister nature of puddles. Pedestrians could slip and fall‚ particularly if the puddles freeze‚ or drivers could skid on the water. Furthermore‚ water standing on top of asphalt pavement poses a risk to the integrity of your parking lot. If there is even a tiny crack in the pavement‚ the water will find a way to penetrate to the foundation
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Pigeon River Pollution The Pigeon River flows through North Carolina and right here into East Tennessee. The Pigeon River got its name from an extinct bird‚ which migrated through the valley of North Carolina. Although‚ the Pigeon River looks nice‚ there is something extremely harmful going on inside the river. The long-polluted Pigeon River in Cocke County has not been “fishable” or “swimmable” for over 100 years due to pollution. The river’s water has turned dark brown‚ and has a terrible
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NETFLIX’S BUSINESS MODEL AND STRATEGY IN RENTING MOVIES AND TV EPISODES EXECUTIVE SUMMARY Netflix is the largest subscription service for sending DVD’s by mail and streaming movies and TV episodes over the internet. Netflix’s revenues grew from $500 million in 2004 to $519.8 million in 2010. Company’s net income increased from $21.6 million in 2004 to $141-156 million in 2010. It attracted 1.6 million subscribers in 2004 and had to 15 million subscribers by 2010. Reed Hastings founder
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FLOODING IN BANGLADESH CAUSES OF THE FLOODS There are several physical reasons why Bangladesh suffers from flooding almost every summer; It has the perfect conditions for such as disaster- this is because : • tropical cyclones from the bay of Bengal bringing heavy rain and storm waves in late summer • 70% of the land of the total area is less than 1 metre above sea level • The total annual rain falls in the summer of Dhaka is almost 2000mm • Rivers lakes and swamps cover more than 10% of the
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Presentation Of Data: Introduction- The Cipero river is located in San Fernando in the district of Victoria‚ South of Trinidad. It is located at an elevation of about 1 metre above sea level and the coordinates are 10°16’0" N and 61°28’0" E. The distance of the Cipero is approximately 25 miles away from Port Of Spain‚ the Capital of Trinidad and Tobago and the compass direction from Port Of Spain is South South-East. Table 1- showing various points at the river and the pH. 
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Dampness and Waterproofing A high performance basement has the benefits of a healthier interior environment‚ reduced energy consumption‚ and a more durable and effective home. In order to achieve such standards‚ you must look at the condition’s involving the basement. The soil‚ in which your house is on‚ is critically important‚ as the soil types affect the way your property drains. Coarse grained soils‚ are good foundation soils‚ and drain freely. Fine grained soils‚ are typically weak founding
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In the article “Houston Flood Waters Are Tainted With Bacteria And Toxins‚ Tests Show” by Sheila Kaplan and Jack Healy‚ flood waters in Houston neighborhoods have been contaminated. Plus‚ the spread of the toxic waters is not clear on how far they have gone‚ but it is hinted that the breaches of several waste plants have made the waters more dangerous. Testing has occurred and has found traces of Escherichia coli which is a fecal contamination. In the Clayton Homes public housing development‚ high
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