Using an ideal parental line to breed hybrid rice with low cadmium (Cd) accumulation in grain is an environmental-friendly approach to reduce the risk of Cd contamination in field. This metal presents a serious threat for both, humans and animals health. It was shown that Cd can inhibit many enzymes by binding to the sulfhydryl groups of the enzyme active sites or via disruptions in forming an enzyme–substrate complex ( Vallee & Ullmer, 1972 ). (Which may explain the high price tag on cadmium paint colors!) Cadmium is found naturally in the earth’s crust but is a relatively rare metal. Fluorescence of thallium and indium vapors.-Impurities in the cadmium vapor gave strong fluorescent Th and In lines, (2p 2 -2s) and (2p 1 -2s), although spark spectra using the cadmium metal as electrodes did not reveal their presence. To explore the physiological response characteristics of Taxodium hybrids to cadmium (Cd) stress and provide basis for screening of Cd-tolerant species, the hydroponic cultivation of T.118 and T.406 … This list includes the wavelength, the ionization stage, the reference for the wavelength measurement, and an intensity. Learn about cadmium, which may raise your risk of lung cancer. Strong Line Tables For each of the elements a list of the strongest lines in the spectra of the neutral and singly-ionized atoms has been compiled. The purpose of this experiment was to study the splitting of a spectral line due to a magnetic eld, known as the Zeeman e ect. Cadmium is a natural element: all soils and rocks contain some cadmium. Cadmium (Cd) is an important environmental pollutant. 1. Speci cally the cadmium red line was investigated. A probable mechanism of cadmium's effect on 5′-deiodinases can be a strong affinity of Cd for sulfhydryl enzyme groups. Exposure occurs mostly where cadmium products (such as batteries, pigments, metal coatings, and plastics) are made or recycled. Cadmium (Cd) is a heavy metal contaminant widely present in the environment. Most of the cadmium produced today is obtained from zinc byproducts and recovered from spent nickel-cadmium batteries. Some of these are are extremely toxic and dissolve easily in water, making them dangerous to humans. Cadmium is a toxic transition metal of continuing occupational and environmental concern , , , .Cadmium exposure leads to a variety of adverse effects , , , .The extremely long biological half life of cadmium essentially makes it a cumulative toxin, so long past exposures could still result in direct toxic effects of the residual metal . The mechanisms of photoprotection in T.118 and T.406 differed in high-Cd concentrations. Tobacco smoke also contains cadmium. Cadmium often couples with other elements in a variety of compounds. 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