Sentences with phrase «normal background levels»

But, if we leave the fission products alone for a few hundred years, they will decay to normal background levels of radiation (Safe enough we don't need to worry about them as much).

There are usually several such plots on one site, some with elevated CO2 and a number of control plots in which CO2 remains at normal background levels.

Bowyer adds that the tiny concentrations of radioactive iodine, cesium, tellurium, xenon and lanthanum that have reached the United States are far below normal background levels and not a health risk.

But a balloon - borne detector flying over Antarctica called the Advanced Thin Ionization Calorimeter (ATIC) has detected 70 more high - energy electrons than the normal background level attributed to supernova blasts.

Not exact matches

Levels detected in a short duration pulse at the plant itself have reached as high as 8,217 microSieverts per hour, or eight times the dose endured in a typical CT scan and four times the normal dose of background radiation in a year.

By early August, concentrations decreased until they returned to background levels when normal oxygen conditions returned in late September.

The response was proportional to radiation dose, and in the most contaminated regions, the leaf loss was 40 percent less than in control regions in Ukraine with normal background radiation levels.

The natural background pattern allowed the team to see whether recent sea - level changes are exceptional or within the normal range, and whether they are faster, equal, or slower than natural changes.

However, a background level of seismicity at many of the volcanoes is normal ranging from 10s to a 100 earthquakes per year at Mount Rainier, Mount Hood, Lassen Peak and Mount St. Helens (between eruptions).

Before Colombia's recent report, the number of cases had hovered near the normal, low background levels, notes Yaneer Bar - Yam.

«As multilingual children have different language backgrounds and experience, this allows assessment of their capacity to learn language, rather than comparing with what is «normal» where there are varied levels of existing knowledge.»

The art direction of this game fits the imaginative aspect extremely well, as every object in the game, from the background to the borders of the levels, are designed to be normal household objects like graph paper and rulers.

The authorities had scanned the area and declared it clean but the Greenpeace team identified hotspots with dangerous levels of radiation, including two places which had levels higher than 5000 times normal background.

Jeremy wrote about perchlorates contamination: «Perchlorate is well - known to pose risks for both human health and wildlife -LSB-...] Their results indicated that within 14 hours of the [fireworks] displays, the background levels of perchlorate increased sharply 24 - 1028 times and typically peaked at 1 day, after which they slowly degraded until they reached normal levels within 20 to 80 days.»

Their results indicated that within 14 hours of the displays, the background levels of perchlorate increased sharply 24 - 1028 times and typically peaked at 1 day, after which they slowly degraded until they reached normal levels within 20 to 80 days.

Druces provides planning advice at all levels from background advice on normal property transactions through to planning agreements on major development sites.

If an app is using higher - than - normal energy levels in the background, the system will prompt you to close said app with a notification alert.

Research shows it has the potential to promote normal developmental trajectories for high - risk children, such as those from low - income backgrounds and / or those with very premature births.13 In contrast, unresponsive parenting may jeopardize children's development, particularly those at higher risk for developmental problems.14 The critical importance of responsive parenting is highlighted by recent evidence identifying links between high levels of early responsive parenting and larger hippocampal volumes for normally developing preschool aged children.