21 Water Quality Parameters 3

21 Water Quality Parameters 3 - wastes, treated lumber,...

Info iconThis preview shows pages 1–6. Sign up to view the full content.

View Full Document Right Arrow Icon
Nutrient additions stimulate primary productivity Primary production is the production of organic compounds from carbon dioxide and chemical nutrients through the process of photosynthesis CO 2 + H 2 O + light = CH 2 O + O 2 Photoautotrophs Form the base of the food chain Organic compounds formed by Primary Producers provide energy to consumers (Heterotrophic Organisms)
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Primary Productivity All life on earth is directly or indirectly reliant on primary production. In terrestrial ecosystems, these are mainly plants, while in aquatic ecosystems algae and phytoplankton are primarily responsible .
Background image of page 2
Excess Nutrients Over-stimulate Primary Productivity Decreased light penetration Decreased oxygen content Changes in species diversity Urban Agriculture Wastewater
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Arsenic Erosion of natural deposits; pesticide waste, runoff from glass & electronics production
Background image of page 4
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 6
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: wastes, treated lumber, groundwater Mercury Erosion of natural deposits; discharge from refineries and factories; runoff from landfills, coal burning Lead Corrosion of household plumbing systems; natural deposits, paint, fuels, electronics Heavy Metals and Metalloids Lead found in blood sample from 1 of 10 Washingtonians Arsenic found in urine samples from 4 of 10 Washingtonians Mercury found in hair samples from 10 of 10 Washingtonians Mercury, Arsenic, and Lead Petroleum Chemical Pollutants three to six million metric tons Exxon Valdez - 300,000 birds and 2,500 otters were killed Spills account for about 5% of petroleum entering waterways. oil changes, bilge cleaning and ship maintenance, recreational boating . New emission standards In 2006 (EPA)...
View Full Document

This note was uploaded on 02/17/2011 for the course SWS 2007 taught by Professor bonczek during the Fall '09 term at University of Florida.

Page1 / 6

21 Water Quality Parameters 3 - wastes, treated lumber,...

This preview shows document pages 1 - 6. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online