'5 ppt' presentation slideshows

Pesticides and Trace Organics

ENS3320 Biochemical toxicology. Pesticides and Trace Organics. Introduction Pesticides and their toxic effects Trace Organics: chemicals and their receptors Toxic effects and risk Assessment of trace organics Electronic w astes & PBDE Concluding remarks. 1. Introduction.

997 views • 64 slides

399 views • 39 slides

Freshwater ecosystems

Freshwater ecosystems. Kinds Characteristics Threats. Aquatic ecosystems. Key distinction: salinity = salt content of the water Measured in parts per thousand (ppt) 1 gm of salt in 1000 gms water = 1 ppt FRESH usually < 0.5 ppt OCEANS average 35 ppt 0.5 to 17 ppt is called BRACKISH.

951 views • 25 slides

__________________________________________

Homework Assignment 02. __________________________________________. Homework Assignment 02 ...is from Chapter 3. Problems assigned are: 5,11,12,15,21,22 This assignment is due at class time Friday, Sept 17 Prepare on regularly sized paper, one side only with multiple pages stapled.

336 views • 21 slides

Presents: Oscar H. Torres University of Arizona Soil, Water, and Environmental Science Department.

296 views • 18 slides

Presents: Oscar H. Torres University of Arizona Soil, Water, and Environmental Science Department.

298 views • 18 slides