The maximum permissible concentration of poisonous gases in a confined space varies depending on the specific gas present and relevant regulations. Common guidelines recommend exposure limits of gases like carbon monoxide not exceeding 50 parts per million over an 8-hour period. However, it is crucial to consult local regulations and safety standards for accurate and up-to-date information.
time maximum at the constant concentration level
The amount of substance that exceeds the tubular maximum will be found in the urine.
A solution whose concentration of solute is equal to the maximum concentration predicted from the solute's solubility is called a saturated solution. In a saturated solution, the solute is in equilibrium with its undissolved form, meaning no more solute can dissolve at that specific temperature and pressure.
The limit to maximum urine concentration is primarily determined by the ability of the kidneys to reabsorb water back into the body. The countercurrent mechanism in the kidneys establishes a concentration gradient that allows for water reabsorption up to a certain point, beyond which further concentration is limited by factors like hormones and kidney function.
The maximum urine concentration is limited by the osmotic gradient between the kidney tubules and the surrounding interstitium. The ability to concentrate urine depends on the proper functioning of the kidney's loop of Henle and collecting ducts to establish and maintain this osmotic gradient. Additionally, factors such as hydration status and certain medical conditions can also affect the maximum urine concentration.
The maximum permissible concentration of mercury in air is 0,1 mg/m3.
23.5%
The question does not make sense -- it needs rephrasing.
current annual permissible maximum of 20 mSv.
Air contain formaldehyde only in contaminated area. The maximum permissible concentration of formaldehyde indoor is 1 microgram/cubic meter.
Q = 1 / Maximum value of Z permissible R = 1/ Maximum value of u permissible
No.
20
.08%
Ozone concentration increases with decreasing altitude to a maximum value, then drops of to near zero at the Earth's surface. The region of high concentration is called a layer, because it covers the entire Earth, and is confined to a few kilometers in height / thickness.
5 microgram per litre
20