Some people like to put things under their gravel. All sorts of fertilizers are used, laterite is popular, and there are several additives and special gravels available. A lot of people like to add fertilizers to their tanks in the form of different drops or spooned in. I've played with some of these at times I haven't noticed anything wonderful happening. Some of them have been kind of nasty. I just don't really use them. Fish poop seems to work just fine in my tanks.

Anti-Oxidant - Reduces bulk oil oxidation which helps to prevent engine deposits, sludge, and high temperature thickening Detergents/Dispersants - Help maintain engine cleanliness by suspending sludge and wear particles in the oil, so that they can be rained out during oil change.

Most quality Motor Oils contain all the necessary additives, specifically balanced to afford complete and superior engine protection. The use of over the counter oil additives is not necessary to obtain the protection required by vehicle manufacturers. In fact, supplemental oil additives and engine treatments are not recommended by many car manufacturers - and are specifically recommended against by some (GM, Ford, Honda, etc.)

Color is an important property of foods that adds to our enjoyment of eating. Nature teaches is early to expect certain colors in certain foods, and our future acceptance of foods is highly dependent on meeting these expectations. Color variation in foods throughout the seasons and the effects of food processing and storage often require that manufacturers add color to certain foods to meet consumer expectations.

In tests that do use ionizing radiation, the dose is usually very small, and is often similar to what you would get from natural background radiation in everyday life. As an example, a dose for a typical X-ray procedure might be 30 - 1,000 mr. Despite extensive study of the effects of radiation, direct evidence does not show that these doses are harmful to humans.

Trans fats can raise the level of low-density lipoprotein (LDL) cholesterol (also called the ??bad?? cholesterol) of our body, while at the same time lower the level of high-density lipoprotein (HDL) cholesterol (also called the ??good?? cholesterol). This increases the risk of coronary heart disease, which is the second killer in Hong Kong .

Suspended particulate matter (PM) is an air pollutant derived from the combustion of fossil fuels in the form of dust, soot, or smoke. Diesel engines account for about one quarter of the particulate air pollution from all on-road sources. More than 98 percent of the particles emitted from diesel engines are fine particles, less than 1 micron in diameter, which can bypass respiratory defense mechanisms and penetrate deep into the lungs.

Nitrogen oxides (NOx) are a family of reactive gaseous compounds that contribute to air pollution. NOx emissions are produced during the combustion of fuels at high temperatures. Nitrogen oxides can irritate the lungs, cause bronchitis and pneumonia, and lower resistance to respiratory infections. They are an important precursor to both ozone and acid rain, and may affect both terrestrial and aquatic ecosystems.(5)

Styrene is not harmful in the very small amounts most people might sometimes encounter in air or food. Someone working with resin solutions containing styrene (patching the surface of a fibreglass boat, for example) may find the odour of styrene causes slight nausea if instructions to ensure adequate ventilation are not heeded. This goes away with exposure to fresh air, and there is no lasting effect. with all chemicals it is important to control one's level of exposure to the product.

If the water is discoloured you should not assume that it is safe to drink until you have sought advice from your water company. If the discolouration is due to mains deposits, these are mostly iron and manganese as such are not likely to be harmful to your health. However you may not wish to drink the water, or give it to your family, because it looks or tastes unpleasant.

No, the limescale in kettles contains calcium and has no connection with kidney stones, which result from other materials.

Not all olives, there are a few raw stores that sell truly raw sun cured olives. Anything in a can is most likely cooked.

No. They are not necessary and can be harmful. AMSOIL Motor Oils are properly formulated under the strictest quality control to provide superior performance, and do not need any additional additives. Read this article. Top

Additives are used in lubricating oil to change or alter or enhance its properties. Base oil as such cannot be used in most of the present-day lubricating applications. Their properties - like resistance to heat, oxygen, wear etc - have to be increased. This increment is done with the use of these additives. To increase the resistance to oxidation, we add 'antioxidants', to increase resistance to wear, we add 'antiwear additives'

Standard use rates of methylated seed oil (MSO) or crop oil concentrate (COC) plus a nitrogen source from UAN, AMS, or 10-34-0 fertilizer is recommended to maximize performance. IMPACT herbicide is labeled for use on Roundup Ready® and LibertyLink®hybrids, as well as on hybrids containing traits for insect management. IMPACT herbicide offers exceptional corn tolerance and will allow flexibility with all current soil and foliar applied insecticide programs.

Yes. When it is used in engines and transmissions, oil picks up harmful contaminants, which can be hazardous to the environment and poisonous to aquatic plants and animals.

No, Diamondlac Waterborne Urethane is a very low odor finish because of its low VOC (Volatile Operative Chemical) count.

The inventor of the Odorhog™ tried additives, and they didn't work for him, so that's why he invented the Odorhog™. There are two sides to the additive issue. See our LINKS page for articles that say that additives are not necessary, don't work, and some could be bad.