Effect of HNO3 and H2SO4 on the Paddy Ecosystem
A Mesocosm Study with Exposure at PNEC and HC50 Levels
Bibliographic Data
| ID | 15460204 |
|---|---|
| Authors | Min‐Seok Park (0009-0000-2246-9043, Korea University), Minseok Park (0000-0002-1398-0429, Korea University), Wonjae Hwang (0000-0003-2378-6344, Korea University), Jino Son (0000-0003-1752-142X, Korea University), June Wee (0000-0001-9813-1380, Korea University), Kijong Cho (0000-0002-7215-8945, Korea University), Seunghun Hyun (0000-0001-8806-5834, Korea University, corresponding author) |
| Year | 2020 |
| Volume | 17 |
| Issue | 14 |
| Pages | 5244-5244 |
| Publication date | 2020-07-21 |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | International Journal of Environmental Research and Public Health (JOURNAL) |
| Journal identifiers | ISSN: 1661-7827 • E-ISSN: 1660-4601 |
| Publisher | Multidisciplinary Digital Publishing Institute (PUBLISHER • CH) |
| DOI | 10.3390/ijerph17145244 |
| PMID | 32708104 |
| OpenAlex | W3044003698 |
| Language | EN |
| References cited | 22 |
Paddy mesocosms comprising of rice ( Oryza sativa ), snail ( Pomacea canaliculata ), and worm ( Tubifex tubifex ) were used to assess the damage caused by two acids (HNO 3 and H 2 SO 4 ) at predicted no-effect concentration (PNEC) and hazardous concentration for 50% of species (HC 50 ) levels. In the fourth week, the fresh weight and shoot height of O. sativa at H 2 SO 4 -HC 50 were reduced by 83.2% and 30.3%, respectively. Wilted leaves (%) at HC 50 were approximately twice that at PNEC. No P. canaliculata and T. tubifex were recovered at HC 50 . At H 2 SO 4 -PNEC, the length and weight of P. canaliculata were reduced by 7.4% and 25.9%, respectively, whereas fewer adult (46.5%) and juvenile (84%) T. tubifex were recovered. In the 20th week, rice growth and productivity were correlated with initial pH (pH i ) and nitrogen levels. Poor correlation with chlorophyll at the active tillering stage suggests the disturbance of nutrient uptake by roots. Partial least squares path modeling (PLS-PM) results further supported that the pH i directly affects grain yield and quality, as well as plant growth. The indirect effect via intervening fourth-week-variables was also substantial. Therefore, it is important to measure initial pH upon acid spill to estimate the risk to the paddy ecosystem. Information on the change in soil properties associated with acidity will also aid in predicting the yield and quality of grain to be harvested
Agronomy · Biology · Botany · Mesocosm · Nutrient · Oryza sativa · Pomacea canaliculata · Snail · Chemistry · Crop Yield and Soil Fertility · Heavy metals in environment · Mollusks and Parasites Studies · Ecology · Horticulture
| Highly cited | No |
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