How does soap affect the envoirment?

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Here's some info I found
"Soap salts cannot dissipate totally in soil, however, because soil has a natural content of fatty acids resulting from plant metabolism and microbial action. Fatty acids are a significant part of the normal daily diet of mammals, birds and
invertebrates.
Ecological Effects
Ammonium salts of fatty acids are used outdoors as a rabbit and deer repellent. They are practically non-toxic to upland game birds and waterfowl. Their other potential hazards were estimated using data from the potassium salts. Acute and subacute toxicity studies using potassium salts of fatty acids indicate that soap salts are relatively non-toxic to birds. They are slightly toxic to both coldwater and warmwater fish species. The potassium salts are highly toxic to aquatic invertebrates.
No studies regarding the effects of the soap salts on non-target insects were available for review. Such studies still are required. In addition, product use rate information is needed to confirm that soap salts pose a minimal threat to endangered species.
Environmental and Ecological Risk Assessment
Pesticides containing potassium or ammonium salts of fatty acids are used on a wide array of outdoor sites. Once applied, however, the soap salts are degraded quickly in soil by microbes, and do not persist in the environment. The soap salts pose minimal risks to birds and are only slightly toxic to fish. They are highly toxic to aquatic invertebrates. However, since soap salts are not applied directly to water, their current
uses should not seriously impact aquatic invertebrates. Additional studies are needed to assess their effects on non-target insects. The soap salts should pose minimal threats to endangered species. In summary, based on the data reviewed, EPA finds that the soap salts will not cause unreasonable adverse effects on the environment."