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Abstract The coral reef ecosystem is known to have high diversity and productivity such as rainforest on land. There is a fringing coral reef located in the Kenting National Park in Taiwan. However, from July 1987, the corals near a nuclear powder plant were frequently bleached in summer. In this research, we had used Acropora grandis as an indicator to study the relationship between the bleaching events of coral with environmental parameters during 1994 to 1998. The results showed that the corals exhibited serious bleaching when the ambient temperature was high. The other environmental parameters were relatively irrelevant. However, during the cool seasons, from January to May, the chl. a of the corals at the right side of warm water effluent, was even than those of the control, showing a better growth result from the warmer temperature. Further analysis showed that bleaching was correlated with water temperature, regional precipitation and sea surface temperature with one and two month before the event, yet not with those of the same month. Human activity in the coastal area was another important factor that caused the deterioration of local coral reef.

Indiana University-Purdue University Indianapolis (IUPUI) / This study was conducted in order to determine if there is any change in the active ingredient of tooth-whitening agents when the products are received from the manufacturer (Baseline), two months, four months, and six months after they are received, under two different storage conditions. Thirty-six products were received from multiple manufacturers: eight with hydrogen peroxide and 28 carbamide with peroxide products. All the bleaching syringes for a specific product were from the same lot. Once the products were received, one sample of each product was stored at room temperature and the other sample was stored in a refrigerator. Assays to determine the baseline concentration were performed within the first two weeks of their arrival and again 2 months, 4 months, and 6 months after receiving the products. All samples were analyzed for peroxide content by using the United States Pharmacopeia recommended method. The results obtained from this study show the following: 1. Bleaching products have different concentrations than what are indicated on the label. 2. Storage of bleaching products for an extended time at room temperature can cause bleaching products to lose some of their potency. 3. The preferable storage condition verified in this study is under refrigeration.

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