The toxicity of nitrotoluenes to guppy
Acute toxicity, subacute toxicity and joint toxicity of 2,6-dinitrotoluene and 4-nitrotoluene to guppy was determined. It would give credible foundation to constitute or perfect water quality standard for fisheries. The results showed that the values of 96 h LC50 of 2,6-dinitrotoluene and 4-nitrotoluene were (25.22±0.19) mg/L and (60.26±0.09) mg/L. Then, the two nitrotoluenes affected upgrowth of guppy in 40 days differently and the joint toxicity of 2,6-dinitrotoluene and 4-nitrotoluene was synergistic effect in 96 h.
Abstract Not Available – First paragraph follows: ::: Previous field studies of soil fertility effects on the processing quality of tomatoes have been inconclusive. To adequately assess the relationship of various nutrients to fruit quality, it is necessary to more closely control the nutrition of the plant. Therefore, techniques were developed and a series of experiments were initiated in the greenhouse to study the effect of individual nutrients on pH, soluble solids, and color, as well as on yield. This article analyzes the effect of one nutrient–nitrogen–on tomato processing quality.