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Topic: PH levels

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	pH levels in water with water treatment systems, wastewater information for Toronto, Ontario Canada and USA
		The symbol pH is used to denote whether a substance is acid, neutral or alkaline.
		A pH of 1 would be strongly acidic, whereas a pH of 7 would be neutral and a pH of 14 would be strongly alkaline.
		The pH is raised by passing the water through a filter bed of limestone chips (calcium carbonate).
	www.waterbusiness.net /watertreatment/water_ph_frame.htm (334 words)

	OMEGA ENGINEERING - Intro to pH
		The term pH is derived from "p", the mathematical symbol of the negative logarithm, and "H", the chemical symbol of Hydrogen.
		The pH value of a substance is directly related to the ratio of the hydrogen ion [H+] and the hydroxyl ion [OH-] concentrations.
		The pH measuring electrode is a hydrogen ion sensitive glass bulb, with a millivolt output that varies with the changes in the relative hydrogen ion concentration inside and outside of the bulb.
	www.omega.com /techref/ph.html (1496 words)

	pH Paper Test Strips Determine pH Levels Quickly, Accurately
		The narrow range pH 5-9 test strips are a simpler version tend to be used more by those interested in body pH balance since saliva and urine are normally in this range.
		pH acid indicators are used for determining the pH level of common materials such as vinegar, lemon juice, battery acid and even yeast infections.
		pH basic papers measure the pH level of alkaline solutions such as lye, milk of magnesia and ammonia.
	www.indigo.com /science-supplies/ph-paper.html (503 words)

	Low pH and Cancer!
		Optimum urine and saliva pH is 7.0 to 7.4.
		Increasing pH from 4 pH to 5 pH increases oxygen to the cells by ten fold.
		Remember that the pH number is an exponent number of 10; therefore, a small difference in pH translates to a BIG difference in the number of oxygen or OH-ions.
	mysite.verizon.net /felipe2/id18.html (1371 words)

	pH Monitors and Controllers
		The pH level in a reef tank typically ranges between 7.9 and 8.4 with optimal levels of 8.2 to 8.4.
		However the pH in a hobbyist reef tank tends to be on the low side of this range due to reasons that may include but are not limited to calcium carbonate reactors, large bioloads (over stocking) or over feeding to name a few.
		The items required to calibrate a meter are calibration fluids with the known pH levels of 4.0, 7.0, and 10.0 as well as RO/DI water and a thermometer.
	www.easyreefer.com /learning_center_hardware/ph_meters.php (544 words)

	body ph balance balancing ph levels
		By balancing your ph levels you can get on the right track to a healthy circulatory system and preventing degenerative diseases before they start.
		When urinary ph is between 6.5 in the morning hours and 7.5 by evening your body is functioning with in a healthy ph level.
		Remember for optimal cardio vascular function your bodies ph levels need to be balanced.
	www.cardio-vascular-health.com /body_ph_balance_bufferph.htm (353 words)

	Growing Acidity of Oceans May Kill Corals
		The pH level, measured in "units," is a calculation of the balance of a liquid's acidity and its alkalinity.
		The lower a liquid's pH number, the higher its acidity; the higher the number, the more alkaline it is. The ph level for the world's oceans was stable between 1000 and 1800, but has dropped one-tenth of a unit since the Industrial Revolution, according to Christopher Langdon, a University of Miami marine biology professor.
		Scientists expect ocean pH levels to drop by another 0.3 units by 2100, which could seriously damage marine creatures that need calcium carbonate to build their shells and skeletons.
	www.washingtonpost.com /wp-dyn/content/article/2006/07/04/AR2006070400772_pf.html (1083 words)

	pH Scale: Some Common Solutions - Chart - MSN Encarta
		The pH of a solution measures the hydrogen ion concentration in that solution.
		A small change in pH represents a large change in hydrogen ion concentration.
		For example, the hydrogen ion concentration of lemon juice (pH of 2.3) is 63 times greater than that of tomato juice (pH of 4.1), and 50,000 times greater than that of water (pH of 7.0).
	encarta.msn.com /media_461534810/pH_Scale_Some_Common_Solutions.html (71 words)

	pH Water Quality Information
		pH is a measure of the acidic or basic (alkaline) nature of a solution.
		The concentration of the hydrogen ion [H+] activity in a solution determines the pH.
		The pH value is the negative power to which 10 must be raised to equal the hydrogen ion concentration.
	www.state.ky.us /nrepc/water/wcpph.htm (229 words)

	pH Levels at Greenhouses & Gazebos
		When pH levels are extremely high, vital nutrients become unavailable to the plant; while extremely low pH levels release nutrients to toxic levels.
		For example, grow media such as perlite, rockwool and L.E.C.A. have a neutral pH and will not alter your nutrient solution; while other grow media such as saw dust and vermiculite are not as stable and can effect the pH of your nutrient solution and the life of your plants.
		The pH level of your nutrient solution should always be checked before you apply it to your hydroponic plants.
	www.greenhousesandgazebos.com /ph-levels.aspx (322 words)

	Aquarium PH Levels
		Aquarium PH levels - pH is simply the level of acidity or alkalinity of water.
		Water of pH 7.0 is called neutral and is neither acidic nor alkaline instead a balance of both.
		In freshwater the pH is typically about 6.5-7.0 with only a few species able to survive outside this range.
	www.fao.com.au /aqua-ph-levels.asp (126 words)

	siew chern's little place - \|Info\| What Do pH Levels Mean To Us?
		For example, the acidity of a sample with a pH of 5 is ten times greater than that of a sample with a pH of 6.
		The human body operates optimally at a pH that varies from 6.8 to 7.5, depending on the time of day: pH tends to peak at 6 o'clock in the evening, and at noon, with the lowest point coming at 6 o'clock in the morning.
		The alkaline levels of your saliva should be greater after chewing the vitamin C or eating a meal, therefore, the pH level should rise.
	mezurashi.multiply.com /journal/item/29 (1946 words)

	PH Levels in The Discus Tank - Pets
		Initially, we begin to prepare for the new arrivals by setting up the tanks in this manner: water was tested for PH and nitrite levels, and a proper ecosystem for active bacteria was begin by populating the tank with cichlids that Nick has been raising prior to the purchase of the discus.
		We were advised by the breeder to let them acclimate to the new tank water by "floating" the bags containing the fish for approximately one hour to equalize the temperatures, and to add a cup of water to the bag from the tank to equalize PH levels.
		Because the two pair were bought for breeding purposes, Nick was not comfortable with the PH level, which at that time was at approximately 7.5, high for optimal breeding conditions of 6.5-6.9.
	www.catanddogpictures.com /pet-articles/46473.php (1944 words)

	Ph Levels (Site not responding. Last check: )
		pH is the measure of acidity or alkalinity of water and is measured on a scale of 0-14 degrees and includes tenths i.e.
		Every 0.1 degree is a ten fold change in acidity/alkalinity, therefore a change from say 7.3 to 8.3 is drastic, and if sudden it is a serious threat to your pond life.
		A pH value of 7 is considered neutral, below this is acidic and above 7 is alkaline.
	www.pondcreations.co.uk /ph_levels.htm (201 words)

	Bass Fishing Resource Guide® - Understanding pH
		Technically, pH is the negative log molar concentration of hydronium ions in water.
		Thus, dropping from pH 7 to 6 is a 10-fold increase in acidity.
		Given that bass monitor their external pH carefully, it seems bass anglers would be wise to likewise keep tabs on this critical water chemistry parameter.
	www.bassresource.com /fish_biology/ph_levels.html (1372 words)

	Online Ethics Center: A pHish Tale (Site not responding. Last check: )
		Tom is a postdoc who is participating in a government-funded project to study the pH levels in a series of lakes scattered throughout an area of 100 square miles.
		He is almost certain that the low pH levels are due to acid rain caused by emissions from power plants in the surrounding region.
		If pH levels continue to fall, most fish will disappear, harming not only the ecosystem, but the local economies of some lakeside villages, where fishermen rely on the fish from the lakes for their livelihood.
	www.onlineethics.org /reseth/appe/vol5/phish.html (925 words)

	Basement Lighting Hydroponics and Grow Lights UK
		PH is measured on a scale ranging from 0- 14, with 7 being neutral, above 7, alkaline and below 7, acidic.
		PH ranges beyond the preferred for a given plant may cause stunted growth or even death.
		When pH levels are extremely high or extremely low, the nutrients become "locked" in solution and unavailable to the plant.
	www.basementlighting.com /ph.htm (457 words)

	pH Levels
		The pH range is 1 — 14 and 7 is the mid-point, meaning ½ acidity to ½ alkalinity.
		Each plant has a level it will tolerate, past that level the plant will look sickly and generally not grow at all in some situations.
		The basic pH test only gives the acidity/alkalinity level and is one of the easiest ways to improve the soil.
	www.landscape-america.com /lawns/soils/ph.html (264 words)

	The Gardener's Network - A to Z's of Home Gardening: pH Levels for garden Soil
		"pH" is a measure of your soil's acidity or alkalinity.
		The mid range of the pH scale is the optimal range for bacterial growth to promote decomposition, a process that releases nutrients and minerals, making them available to your plants.
		Mid range pH is also the ideal range for growth of soil microorganisms that convert nitrogen in the air into a form that your plants can use.
	www.gardenersnet.com /atoz/ph.htm (440 words)

	pH Levels of Soil - Gardening
		pH is the start of pHat (if you want it to be!), but for those of you who cringe at this hip colloquialism (as I do),
		Most plants prefer somewhere in the middle of these two extremes, and you can adjust the pH level of your soil in different parts of your garden to respond to diferent plants.
		And once you know where the levels at, you can add lime to raise the level, or sulfer to lower it.
	www.gardening.net.au /ph-levels-of-soil (397 words)

	Do pH levels carry on thorugh evaporation?
		I have never heard of pH in gases, and this may just be a due to my rather unstructured education.
		Yes,by definition pH is for solutions,which means that gases would have to fit in only by dissolving into a solvent.
		H+ + 0H- --->H20, pH is derived from the K of this equation.
	www.physicsforums.com /showthread.php?goto=lastpost&t=64087 (734 words)

	Analysis of pH levels in Chicago
		This important because pH is the measure of the H+ (hydrogen) ion concentration in the water.
		The reason organisms are so sensitive to pH levels is that they have lived and adapted to water within a small range of pH levels.
		It was determined that it was impossible to prove the assumption wrong that Chicago's pH levels were acceptable.
	shrike.depaul.edu /~aboyle (340 words)

	Keracare PH levels - Page 2 - Long Hair Care Forums (Site not responding. Last check: )
		pH scale is 1 to 14 with 7 being neutral (water is generally 7 on the pH scale and is considered neutral).
		I don't know that my hair needs a particular pH level, but since I relax every 3 months AND I wash with 'poo once a week, I KNOW my hair needs to be acidified periodically because relaxers and 'poos raises the pH.
		IMO, its important to CLEAN my hair first, which will generally raise the pH because cleansers and detergents by their nature, are alkaline, so I don't worry tooooo much about the pH of 'poos, rather I try to make sure they have good detergents that will clean without stripping my hair.
	www.longhaircareforum.com /forums/showthread.php?p=1397607#post1397607 (1468 words)

	Technology Review: Nano Bullets for Ovarian Cancer
		The environment around most tumors is acidic, having lower pH levels than the rest of the body.
		Levels are even more acidic inside tumors due to lack of blood and lactic acid buildup.
		Much like a suitcase which could only be opened with a specific combination, this vessel could only be "unlocked" in the presence of low pH levels exhibited by tumor cells.
	www.technologyreview.com /read_article.aspx?id=17396&z=319&p=1&ch=nanotech (622 words)

	Manitoba Waterways Project - pH Levels
		pH is an indication of the H+ (hydrogen ion) concentration of a substance.
		The pH scale is logarithmic (increases by an order of 10 for each grade on the scale and is based on the relation between H^(+) and OH^(-) (hydroxide ion).
		Although bacteria can tolerate an extreme range of acidity levels, organisms such as trout, mayflies and stoneflies have a short-range acidity tolerance.
	home.cc.umanitoba.ca /~lewthwai/mwp/parameters/ph.html (388 words)

	Acid Reflux-Testing your pH levels
		An acid pH, or "acidosis," is the term used to describe the imbalanced acidic condition of all our body fluids.
		Virtually all cellular functions of the body are sensitive to the pH of their fluids.
		If the pH deviates too far to the acid side, cells become poisoned in their own toxic acidic wastes and die.
	www.naturalsupplementwarehouse.com /phteststrips.htm (260 words)

	Medtronic Products: Learn about the Bravo pH Monitoring System
		The Bravo system involves a pH capsule, about the size of a gel cap, that is temporarily attached to the wall of the esophagus.
		The Bravo™ pH Capsule measures pH levels in the esophagus and transmits readings via radio telemetry to the Bravo™ Receiver worn on the patient’s belt or waistband.
		Once the pH capsule is in place, suction is applied, drawing a small amount of esophageal tissue into the capsule and locking it in place.
	www.medtronic.com /neuro/gerd/whatisBravo.html (296 words)

	pH Advice. Products to ensure the correct body pH balance
		It leads to a need by all people, acknowledged or unacknowledged, to alter our body pH levels to the point where our bodies operate at their optimum levels.
		Thirdly the body’s pH levels must be balanced correctly and finally the root constitution must be altered so that is balanced.
		All these will help contribute to giving you a body that is pH balanced, full of nutrition and far healthier than could have been imagined before the course of treatment was begun.
	www.phadvice.com (1123 words)

	Coral: Growth Affected by pH Levels and Buffers
		You are right; the slow reef growth is related to your pH levels.
		The calcification of hard corals and marine algae occurs more efficiently at a higher pH, and for a reef aquarium like yours, it should be your goal to maintain pH levels in the 8.3 to 8.5 range.
		The pH levels in a tank are directly related to the balance of various trace elements in the water: carbonates, bicarbonates, magnesium, borate, and potassium, to name a few.
	www.peteducation.com /article.cfm?cls=0&cat=1968&articleid=2716 (356 words)

	How to Check and Adjust pH Levels in a Swimming Pool \| eHow.com
		Your swimming pool's pH levels are important to understand and control if you want to have a long, fun pool season.
		Use a pH increaser (also available at pool supply centers) to adjust and maintain correct levels if the water is acidic.
		Add a pH decreaser to adjust and maintain correct levels if the water is alkaline.
	www.ehow.com /how_17435_check-adjust-ph.html (621 words)

	Balance pH Levels
		On the other hand if the urinary pH is highly alkaline and the salivary pH is acidic it means there is a likelihood of cancer, or fungus infection.
		While your pH is used to determine whether your body is properly absorbing the required mineral or not from the foods we eat.
		The mentioned way of stabilizing your pH is a quick fix, however in the long run, the best way is to eat more alkali forming foods if you are acidic, and acid forming food if you are alkali.
	www.earthclinic.com /CURES/pH.html (4069 words)

	Natural Skin Care - Importance of your Skin's pH
		The pH of normal, healthy human skin is somewhere between 4.5 and 6.
		It has been found that the growth of this bacteria is very much dependent on the pH value of the skin and its growth is at its minimum at the normal skin pH of 5.5.
		The use of ordinary soap, not only changes the pH of the skin to be more alkaline, effectively removing the protective acid mantle, but also kills the bacteria responsible for creating, at least in part, the acidic pH of your skin – a double whammy.
	www.wildcrafted.com.au /Articles/Natural_Skin_Care_Articles/Importance_of_skins_pH.html (1786 words)

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